阅读说明：本技术 一种废气净化用气液混合器 (Gas-liquid mixer for waste gas purification ) 是由 王顺 于 2021-07-16 设计创作，主要内容包括：本发明涉及废气净化技术领域,具体是一种废气净化用气液混合器,包括：净化液输入通道、废气输入通道、以及二级处理腔；气液混合器内还设置有：增压型管路；增压型管路贯穿于废气输入通道内腔,净化液输入通道外接若干道输液支管,输液支管的末端与增压型管路的内通道相连通；雾化组件；雾化组件内置于二级处理腔中,废气输入通道的输出端外接有喷淋管路,雾化组件经高温加热处理并且喷淋管路的喷淋端朝向雾化组件的高温区域。本申请能够提高净化液与废气的混合程度,使得废气更容易被净化液吸收,喷射出的净化液被汽化或者形成悬浮型的水珠状,从而进一步利于废气与净化液的反应。(The invention relates to the technical field of waste gas purification, in particular to a gas-liquid mixer for waste gas purification, which comprises: a purifying liquid input channel, a waste gas input channel and a secondary treatment cavity; the gas-liquid mixer is also internally provided with: a booster-type pipeline; the pressurizing pipeline penetrates through the inner cavity of the waste gas input channel, the purifying liquid input channel is externally connected with a plurality of infusion branch pipes, and the tail ends of the infusion branch pipes are communicated with the inner channel of the pressurizing pipeline; an atomizing assembly; the atomization component is arranged in the secondary treatment cavity, the output end of the waste gas input channel is externally connected with a spraying pipeline, and the atomization component is subjected to high-temperature heating treatment and the spraying end of the spraying pipeline faces the high-temperature region of the atomization component. This application can improve the mixed degree of scavenging solution and waste gas for waste gas is absorbed by the scavenging solution more easily, and the scavenging solution that erupts is vaporized or forms the drop of water form of suspension type, thereby further does benefit to the reaction of waste gas and scavenging solution.)

1. A gas-liquid mixer for exhaust gas purification, comprising: the device comprises a purification liquid input channel used for inputting purification liquid, a waste gas input channel used for inputting waste gas and connected with the purification liquid input channel, and a secondary treatment cavity arranged at the output end of the waste gas input channel; the gas-liquid mixer is characterized in that:

a booster-type pipeline; the booster pipeline penetrates through the inner cavity of the waste gas input channel, the purifying liquid input channel is externally connected with a plurality of infusion branch pipes, and the tail ends of the infusion branch pipes are communicated with the inner channel of the booster pipeline;

an atomizing assembly; the atomization component is arranged in the secondary treatment cavity, the output end of the waste gas input channel is externally connected with a spraying pipeline, and the atomization component is subjected to high-temperature heating treatment and the spraying end of the spraying pipeline faces a high-temperature region of the atomization component.

2. The gas-liquid mixer for purifying waste gas according to claim 1, wherein the purifying liquid input channel and the waste gas input channel are provided in plurality, and each waste gas input channel can be provided with one or more purifying liquid input channels.

3. The gas-liquid mixer for purifying waste gas according to claim 1, wherein the pressure-increasing type pipeline is composed of a plurality of branch flow curve segments, the branch flow curve segments are sequentially connected with each other, the branch flow curve segments include two linear pipelines arranged in a cross manner, and an arc-shaped pipeline connected between the linear pipelines, one of the linear pipelines is communicated with the linear pipeline on the same side of the previous branch flow curve segment, the starting end of the other linear pipeline is tangent to the arc-shaped pipeline of the previous branch flow curve segment, and the tail end of the other linear pipeline is communicated with the linear pipeline on the same side of the next branch flow curve segment.

4. The gas-liquid mixer for exhaust gas purification according to claim 3, wherein a confluence through hole is provided at an intersection of the arc-shaped pipe and the linear pipe, and ends of the fluid delivery branch pipes are connected to the corresponding confluence through holes.

5. The gas-liquid mixer for exhaust gas purification according to claim 4, wherein a booster pump is provided at an input end of the booster type pipe.

6. The gas-liquid mixer for purifying waste gas according to claim 1, wherein the atomization assembly comprises a support rod, a positioning section is arranged on the support rod, a branch rod is mounted on the positioning section through a loading sleeve, a heat conducting head is arranged at a rod end of the branch rod, a high temperature net is arranged at a heat supply end of the heat conducting head, and a nozzle position of the spraying pipeline is close to the high temperature net.

7. The gas-liquid mixer for purifying waste gas of claim 6, wherein the high temperature net is assembled by a plurality of hollow metal pipes, the main body of the heat conducting head is a heat conducting gas cylinder, the heat conducting gas cylinder is externally connected with a hot gas pipeline through a hot gas through hole, and the heat conducting gas cylinder and the metal pipes of the high temperature net are directly provided with gas delivery heads.

8. The gas-liquid mixer for purifying waste gas of claim 6, wherein the outer shell end of the heat conducting head is provided with an external joint, the corners of the secondary treatment chamber are provided with fixed ends, and the external joint and the fixed ends are connected by an elastic pull rope.

9. The gas-liquid mixer for purifying waste gas according to claim 8, wherein a position-limiting sleeve is provided at the rod end of the branch rod, the heat conducting head is movably inserted into the position-limiting sleeve, an inner connecting rod is provided between the heat conducting head and the outer joint, and a buffer spring is wound around the inner connecting rod and is pressed between the position-limiting sleeve and the outer joint.

Technical Field

The invention relates to the technical field of waste gas purification, in particular to a gas-liquid mixer for waste gas purification.

Background

In recent years, emission and fuel consumption regulations of power systems are becoming strict, strict fuel consumption regulation limits are being set, and under the increasingly strict emission and fuel consumption standards and the requirements of miniaturization and light weight of engines, exhaust gas treatment systems must be correspondingly improved to meet government regulation requirements, such as arranging a mixer to reduce nitrogen oxide emission and treat nitrogen oxide.

The mixer is used for mixing the exhaust gas discharged by the engine and the urea conversion product, the reduction reaction is carried out on the SCR catalyst, and the nitrogen oxide is converted into pollution-free nitrogen and water vapor to be discharged, so that the content of the nitrogen oxide in the exhaust gas is reduced, and the emission regulation standard is met.

For the mixer, the existing technology usually adopts a driver to drive the mixing element to move, so as to drive the waste gas and the treatment liquid to mix; however, for a power system of a vehicle, a built-in driver can greatly occupy a built-in volume, and the service life of the driver is greatly reduced due to a high-temperature space in the power system; therefore, it is necessary to design a gas-liquid mixer without an external power component.

Disclosure of Invention

The present invention is directed to a gas-liquid mixer for purifying exhaust gas, which solves the above problems of the related art.

In order to achieve the purpose, the invention provides the following technical scheme:

a gas-liquid mixer for exhaust gas purification, comprising: the device comprises a purification liquid input channel used for inputting purification liquid, a waste gas input channel used for inputting waste gas and connected with the purification liquid input channel, and a secondary treatment cavity arranged at the output end of the waste gas input channel; the gas-liquid mixer is also internally provided with:

a booster-type pipeline; the booster pipeline penetrates through the inner cavity of the waste gas input channel, the purifying liquid input channel is externally connected with a plurality of infusion branch pipes, and the tail ends of the infusion branch pipes are communicated with the inner channel of the booster pipeline;

an atomizing assembly; the atomization component is arranged in the secondary treatment cavity, the output end of the waste gas input channel is externally connected with a spraying pipeline, and the atomization component is subjected to high-temperature heating treatment and the spraying end of the spraying pipeline faces a high-temperature region of the atomization component.

The purifying liquid input channel and the waste gas input channel are provided with a plurality of channels, and each waste gas input channel can be provided with one or more purifying liquid input channels.

As a further scheme of the invention: the booster-type pipeline is composed of a plurality of shunting curve sections, the shunting curve sections are sequentially arranged and connected with each other, each shunting curve section comprises two linear pipelines which are arranged in a cross mode and arc pipelines which are connected between the linear pipelines, one linear pipeline is communicated with the linear pipeline on the same side of the last shunting curve section, the initial end of the other linear pipeline is tangent to the arc pipeline of the last shunting curve section, and the tail end of the other linear pipeline is communicated with the linear pipeline on the same side of the next shunting curve section.

As a further scheme of the invention: the junction of arc pipeline and line type pipeline is provided with the through-hole that converges, the end of infusion branch pipe all is connected to corresponding through-hole department that converges.

As a further scheme of the invention: and the input end of the booster pipeline is provided with a booster pump.

As a further scheme of the invention: the atomization component comprises a supporting rod, a positioning section is arranged on the supporting rod, a branch rod is installed on the positioning section through a loading sleeve, a heat conducting head is arranged at the rod end of the branch rod, a high-temperature net is arranged at the heat supply end of the heat conducting head, and the nozzle position of the spraying pipeline is close to the high-temperature net.

As a further scheme of the invention: the high temperature net adopts a plurality of cavity type metal pipes equipment to form, the main part of heat conduction head is heat conduction inflator, heat conduction inflator passes through the external hot gas flow pipeline of steam through-hole, heat conduction inflator and high temperature net's metal pipe directly are provided with the gas transmission head.

As a further scheme of the invention: the heat conduction head shell end is provided with the external joint, the corner of secondary treatment chamber is provided with the stiff end, be provided with the elasticity stay cord between external joint and the stiff end and be connected.

As a still further scheme of the invention: the rod end of the branch rod is provided with a limiting sleeve, the heat conducting head movably penetrates through the limiting sleeve, an inner connecting rod is arranged between the heat conducting head and the outer joint, and a buffer spring is wound at the inner connecting rod and extruded between the limiting sleeve and the outer joint.

Compared with the prior art, the invention has the beneficial effects that:

the application designs that a purifying liquid input channel and a waste gas input channel are respectively connected with a purifying liquid guide pipe and a waste gas guide pipe; the booster pipeline performs slow flow boosting treatment on the waste gas input into the waste gas input channel, so that the flow speed of the waste gas in unit volume is reduced, and the pressure is increased; and the infusion branch pipe leads in the scavenging solution to the pressure-increasing type pipeline again, improves the mixed degree of scavenging solution and waste gas for waste gas is absorbed by the scavenging solution more easily, improves the saturation that waste gas dissolves in the scavenging solution. Then the waste gas and the purifying liquid are sprayed into a high-temperature area of the atomizing assembly; the sprayed purifying liquid is easier to be vaporized or forms a suspension type water bead shape, thereby further facilitating the reaction of the waste gas and the purifying liquid.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application. Also, the drawings and the description are not intended to limit the scope of the present concepts in any way, but rather to illustrate the concepts of the present disclosure to those skilled in the art by reference to specific embodiments.

Fig. 1 is a schematic view of an overall structure of a gas-liquid mixer for exhaust gas purification according to an embodiment of the present invention.

FIG. 2 is a schematic structural diagram of the area A in FIG. 1 according to the present invention.

Fig. 3 is a schematic structural diagram of a secondary processing chamber according to an embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a thermal head according to an embodiment of the present invention.

Fig. 5 is a schematic view illustrating an installation of an external joint and an elastic pull rope according to an embodiment of the present invention.

In the figure: 11. a purified liquid input channel; 12. an exhaust gas input channel; 13. a purified liquid conduit; 14. an exhaust gas conduit; 15. a transfusion branch pipe; 16. a booster-type pipeline; 17. a spray pipeline; 18. a secondary treatment chamber; 19. an atomizing assembly; 10. a gas-liquid separation chamber; 21. a booster pump; 22. a flow-splitting curve segment; 23. a linear pipeline; 24. an arc-shaped pipeline; 25. a bus through hole; 31. a support bar; 32. a positioning section; 33. a loading sleeve; 34. branch rods are arranged; 35. a heat conducting head; 36. a high temperature screen; 41. a heat conducting air cylinder; 42. hot gas through holes; 43. a gas delivery head; 51. an inner connecting rod; 52. an outer joint; 53. a buffer spring; 54. a fixed end; 55. an elastic pull rope; 56. a limiting sleeve.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, examples of which are shown in the drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements, unless otherwise indicated.

It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Specific implementations of the present invention are described in detail below with reference to specific embodiments.

In one embodiment;

referring to fig. 1, there is provided a gas-liquid mixer for exhaust gas purification, including: a purifying liquid input channel 11 used for inputting purifying liquid, an exhaust gas input channel 12 used for inputting exhaust gas and connected with the purifying liquid input channel 11, and a secondary treatment cavity 18 arranged at the output end of the exhaust gas input channel 12; the gas-liquid mixer is also internally provided with:

a booster type piping 16; the booster pipeline 16 penetrates through the inner cavity of the waste gas input channel 12, the purifying liquid input channel 11 is externally connected with a plurality of infusion branch pipes 15, and the tail ends of the infusion branch pipes 15 are communicated with the inner channel of the booster pipeline 16;

an atomizing assembly 19; the atomization assembly 19 is arranged in the secondary treatment cavity 18, the output end of the waste gas input channel 12 is externally connected with a spraying pipeline 17, the atomization assembly 19 is subjected to high-temperature heating treatment, and the spraying end of the spraying pipeline 17 faces a high-temperature region of the atomization assembly 19.

In this embodiment, the cleaning liquid input channel 11 and the waste gas input channel 12 are respectively connected with the cleaning liquid guide pipe 13 and the waste gas guide pipe 14; the pressure-increasing type pipe 16 performs a slow flow pressure-increasing process on the exhaust gas input to the exhaust gas input passage 12 so that the flow rate of the exhaust gas per unit volume is decreased and the pressure is increased; and the liquid conveying branch pipe 15 leads the purifying liquid into the pressurizing pipeline 16, so that the mixing degree of the purifying liquid and the waste gas is improved, the waste gas is easier to be absorbed by the purifying liquid, and the saturation of the waste gas dissolved in the purifying liquid is improved.

Then the waste gas and the purifying liquid are sprayed into the secondary treatment cavity 18 and the high-temperature area of the atomizing assembly 19; the sprayed purifying liquid is easier to be vaporized or forms a suspension type water bead shape, thereby further facilitating the reaction of the waste gas and the purifying liquid.

The secondary treatment cavity 18 is externally connected with the gas-liquid separation cavity 10, after the waste gas reacts with the treatment liquid, the gas flow and the liquid are input into the gas-liquid separation cavity 10, the horizontal top end of the gas-liquid separation cavity 10 is provided with an exhaust port for discharging the treated gas flow, and the horizontal bottom end of the gas-liquid separation cavity 10 is provided with a water outlet for discharging water liquid. Under normal conditions, the waste gas can be purified into nitrogen, water vapor and water liquid, and can be directly discharged without damaging the environment.

In one case of the present embodiment,

the purifying liquid input channel 11 and the waste gas input channel 12 are provided with a plurality of channels, and each waste gas input channel 12 can be provided with one or a plurality of purifying liquid input channels 11. As an example, fig. 1 shows a mechanism arrangement of the purifying liquid input passages 11 and the exhaust gas input passages 12, each exhaust gas input passage 12 is located between adjacent purifying liquid input passages 11, and the specific configuration and the number of the purifying liquid input passages 11 and the exhaust gas input passages 12 can be designed according to actual conditions.

In one embodiment;

referring to fig. 1 and 2, for the pressure increasing type pipeline 16, the present embodiment is designed as follows, the pressure increasing type pipeline 16 is composed of a plurality of branch flow curve segments 22, the branch flow curve segments 22 are sequentially arranged and connected with each other, the branch flow curve segments 22 include two linear pipelines 23 arranged in a cross manner, and an arc pipeline 24 connected between the linear pipelines 23, wherein one linear pipeline 23 is communicated with the linear pipeline 23 on the same side of the previous branch flow curve segment 22, the start end of the other linear pipeline 23 is tangent to the arc pipeline 24 of the previous branch flow curve segment 22, and the end thereof is communicated with the linear pipeline 23 on the same side of the next branch flow curve segment 22.

The junction of the arc pipeline 24 and the linear pipeline 23 is provided with a confluence through hole 25, and the tail ends of the infusion branch pipes 15 are connected to the corresponding confluence through hole 25.

The waste gas enters the booster-type pipeline 16, is divided into two paths from the initial end of the linear pipeline 23 and moves along the linear pipeline 23, the linear pipeline 23 on one side changes direction through the arc pipeline 24, and the airflow impacts the linear pipeline 23 on the other side, so that the flow speed of the whole waste gas is necessarily reduced, the internal potential energy of the waste gas and the intermolecular activity in the waste gas are improved, and the pressure of the built-in waste gas is increased. So that the intersection of the arc-shaped pipeline 24 and the linear pipeline 23 is the position where each section of waste gas flow impacts each other;

the purification liquid is introduced into the pressurization type pipeline 16 from the confluence through hole 25, and the pressure of the mixture of the waste gas and the purification liquid is inevitably increased again due to the influx of the purification liquid; meanwhile, the reaction rate of the purifying liquid and the waste gas is greatly improved due to the improvement of the internal potential energy of the waste gas and the intermolecular activity in the waste gas; and then the mixture of the waste gas and the purifying liquid does not pass through the flow dividing curve section 22, namely the mixture of the waste gas and the purifying liquid impacts the mixture of the waste gas and the purifying liquid, so that the reaction effect of the waste gas and the purifying liquid is further improved.

In one case of the present embodiment,

in the case where the built-in space or condition of the mixer is appropriate, a booster pump 21 may be provided at an input end of the booster-type piping 16; the introduction of the waste gas is properly accelerated, so that the mutual impact effect of the waste gas and the mixed liquid is improved, the intermolecular activity is further improved, and the reaction effect is further improved.

In one embodiment;

referring to fig. 1 and 3, the atomizing assembly 19 includes a support rod 31, a positioning section 32 is disposed on the support rod 31, a branch rod 34 is mounted on the positioning section 32 through a loading sleeve 33, a heat conducting head 35 is disposed at a rod end of the branch rod 34, a high temperature net 36 is further disposed at a heat supplying end of the heat conducting head 35, and a spraying port of the spraying pipeline 17 is close to the high temperature net 36.

In the embodiment, the support rod 31 is used as a support component, the branch rod 34 is installed on the support rod 31, and the output end of the branch rod 34 facing the exhaust gas input channel 12 at the corresponding position is provided with the high temperature networks 36, so that each high temperature network 36 is located at the spraying end of the corresponding spraying pipeline 17; the spray pipeline 17 sprays and releases the purification liquid of the mixed waste gas, so that the purification liquid is sprayed on the high-temperature net 36, the purification liquid vaporized by water can further react with the waste gas, and the high-temperature environment provided by the high-temperature net 36 can effectively play a role of catalysis, so that the reaction rate is improved.

In one case of the present embodiment,

referring to fig. 3 and 4, the high temperature net 36 is assembled by a plurality of hollow metal pipes, the main body of the heat conducting head 35 is a heat conducting air cylinder 41, the heat conducting air cylinder 41 is externally connected with a hot air flow pipeline through a hot air through hole 42, and the heat conducting air cylinder 41 and the metal pipes of the high temperature net 36 are directly provided with an air delivery head 43.

For the condition of introducing high temperature into the high temperature network 36, the high temperature network 36 is formed by assembling a plurality of hollow metal pipes, and when the power system of the vehicle runs, a large amount of heat energy is inevitably generated, so that hot air flow is introduced into the metal pipes of the high temperature network 36, and the high temperature network 36 is heated.

As an example, fig. 1 shows a mechanism arrangement of the high temperature net 36, in which the high temperature net 36 adopts a double-layer structure design, but specifically adopts one or more high temperature nets 36, which can be set according to actual requirements.

In one embodiment;

referring to fig. 4 and 5, an outer joint 52 is disposed at an outer shell end of the heat conducting joint 35, a fixed end 54 is disposed at a corner of the secondary processing chamber 18, and an elastic pull rope 55 is disposed between the outer joint 52 and the fixed end 54 for connection.

The rod end of the branch rod 34 is provided with a limit sleeve 56, the heat conducting head 35 movably penetrates through the limit sleeve 56, an inner connecting rod 51 is arranged between the heat conducting head 35 and the outer joint 52, a buffer spring 53 is wound at the position of the inner connecting rod 51, and the buffer spring 53 is extruded between the limit sleeve 56 and the outer joint 52.

In the embodiment, the high temperature net 36 is designed to be an installation end through the heat conduction head 35 and is installed in the limit sleeve 56 in a limiting way, so that the high temperature net 36 can be properly displaced; along with the overall motion of the vehicle series, certain vibration effect can be generated inevitably, the elastic pull rope 55 provides certain elastic pulling for the heat conducting head 35, and the buffer spring 53 improves the elastic restoring force in the opposite direction, so that the high-temperature net 36 can properly fluctuate in a limited and allowed space of the limit sleeve 56 with small amplitude, thereby improving the contact effect of the high-temperature net 36 with the purification liquid and the waste gas mixture, and further improving the reaction effect.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.