CN214533153U

CN214533153U - Liquid-cooled electronic control urea solution injector

Info

Publication number: CN214533153U
Application number: CN202120551105.1U
Authority: CN
Inventors: 李平; 曹友国; 李科
Original assignee: LOTUSFAIRY POWER TECHNOLOGIES CORP
Current assignee: LOTUSFAIRY POWER TECHNOLOGIES CORP
Priority date: 2021-03-17
Filing date: 2021-03-17
Publication date: 2021-10-29
Anticipated expiration: 2031-03-17

Abstract

The utility model discloses an automatically controlled urea solution sprayer of liquid cooling formula, the utility model discloses a mount pad, the measurement valve body, coolant liquid inlet joint, coolant liquid goes out the liquid joint, cool off the measurement valve body in fixed mounting measurement valve body through the mount pad, the slope sets up U type cooling tube and winds around the measurement valve body in the mount pad, it is simpler to compare in the cooling structure of many encircles, the structure of comparing in the single encircles has increased the route and the area of coolant liquid at the mount pad inner loop, the coolant liquid that rethread heat transfer principle made the quick flow measures the valve body and the mount pad and takes away the absorptive heat from high temperature exhaust environment, the ambient temperature around being close to the measurement valve body has been guaranteed, the cooling efficiency has been showing and has been improved, prevent that urea solution from crystallization in the metering valve from causing the injection metering valve to block up and influence normal work.

Description

Liquid-cooled electronic control urea solution injector

Technical Field

The utility model relates to an automobile exhaust handles technical field. More specifically, the utility model relates to an automatically controlled urea solution sprayer of liquid cooling type.

Background

Passenger car and commercial car are when carrying out the tail gas treatment, often adopt the injection of solenoid valve control switch urea solution, because the blast pipe temperature is too high, urea solution is extremely volatile or crystallization under the high temperature, influence urea solution's injection effect, the cooling effect who adopts compressed air does not reach relevant technical requirement, consequently more adopt the coolant liquid to cool off the urea solution sprayer, because the product volume of the same type is too big, but vehicle installation space is limited, the use has been restricted, consequently need design the cooling route in order to optimize the coolant liquid in the sprayer to the structure of urea solution sprayer, improve cooling efficiency when reducing the product volume.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an automatically controlled urea solution sprayer of liquid cooling formula to solve the not good technical problem of the inside cooling effect of urea solution sprayer among the prior art.

To achieve these objects and other advantages in accordance with the purpose of the invention, there is provided a liquid-cooled electronically controlled urea solution injector, comprising:

the mounting seat is internally provided with a through cavity along the vertical direction, a U-shaped cooling pipe is arranged inside the mounting seat, the U-shaped cooling pipe bypasses the through cavity and is arranged upwards relative to the horizontal plane, a liquid inlet and a liquid outlet are respectively formed in the side wall of the mounting seat corresponding to the two ends of the U-shaped cooling pipe, and one end of the U-shaped cooling pipe is communicated with the liquid inlet while the other end is communicated with the liquid outlet;

the cooling liquid inlet joint is connected to the liquid inlet and is communicated with the corresponding end of the U-shaped cooling pipe through the liquid inlet;

the cooling liquid outlet joint is connected to the liquid outlet and is communicated with the corresponding end of the U-shaped cooling pipe through the liquid outlet;

the metering valve body is vertically installed in the through cavity, the upper end of the metering valve body is provided with a liquid inlet end, the lower end of the metering valve body is provided with a liquid outlet end, urea solution is sprayed from the liquid outlet end to enter the exhaust pipe, the outer side of the upper end of the metering valve body is sleeved with a urea liquid inlet pipe joint, the liquid inlet end is communicated with an external urea liquid inlet pipe through the urea liquid inlet pipe joint, and the lower end of the urea liquid inlet pipe joint is fixedly connected with the upper end of the mounting seat to encapsulate the upper end of the metering valve body in the through cavity.

Preferably, the lower extreme of measurement valve body is the diameter of the cylindrical structure of echelonment and from last to every section ladder down in proper order in vertical, the shape that leads to the lower extreme in chamber with the lower extreme of measurement valve body is unanimous, the inside wall that leads to the lower extreme in chamber with the lateral wall laminating setting of the lower extreme of measurement valve body, the diameter that leads to the upper end in chamber is greater than the diameter of the upper end of measurement valve body, with form the space around the upper end of measurement valve body, the mount pad is made by the metal material.

Preferably, both ends of the U-shaped cooling tube are located at the same level, and the liquid outlet and the liquid inlet are located at the same level.

Preferably, the liquid outlet and the liquid inlet are arranged at the position of the mounting seat below the gap.

Preferably, the liquid inlet with the liquid outlet is close to the one end of U type cooling tube all is provided with the sealing washer, coolant liquid inlet joint with pass through threaded connection between the inner wall of liquid inlet, coolant liquid play liquid joint with pass through threaded connection between the inner wall of liquid outlet.

The utility model discloses at least, include following beneficial effect: the utility model discloses a liquid cooling type automatically controlled urea solution sprayer, including the mount pad, the measurement valve body, coolant liquid inlet joint, coolant liquid goes out the liquid joint, cool off the measurement valve body through the mount pad when fixed mounting measurement valve body, the slope sets up U type cooling tube in the mount pad and winds around the measurement valve body, it is simpler to compare with the cooling structure of many surrounding types, compared with the structure of single surrounding type increased the route and the area of coolant liquid circulation in the mount pad, and then make the coolant liquid of fast flowing take away the measurement valve body and the mount pad heat that absorbs from the high temperature exhaust environment through the heat transfer principle, the cooling efficiency is obviously improved, the ambient temperature near around the measurement valve body is guaranteed, prevent the crystallization of urea solution, in addition through forming the direct contact of the inboard wall of the isolated mount pad at logical chamber and the upper end of measurement valve body in the space around the upper end of measurement valve body, the heat is prevented from being transferred to the upper end of the metering valve body, the cooling quality is guaranteed, the cooling liquid can intensively cool the lower ends of the metering valve body and the mounting seat, and the cooling efficiency is further improved.

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 side view of the external structure of the present invention;

FIG. 2 is a view of the external top view of the present invention;

FIG. 3 is a sectional structural view in the direction A-A of FIG. 2;

FIG. 4 is a sectional view in the direction B-B of FIG. 2;

fig. 5 is a sectional structure view of the U-shaped cooling pipe of the present invention in the top view direction.

The specification reference numbers indicate: 1. the cooling device comprises a mounting base, 2 parts of a through cavity, 3 parts of a U-shaped cooling pipe, 4 parts of a liquid inlet, 5 parts of a liquid outlet, 6 parts of a cooling liquid inlet joint, 7 parts of a cooling liquid outlet joint, 8 parts of a metering valve body, 9 parts of a urea liquid inlet pipe joint, 10 parts of a gap, 11 parts of bolt holes, 12 parts of a power supply interface.

Detailed Description

The present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.

In the description of the present invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

As shown in fig. 1-5, the utility model discloses an automatically controlled urea solution sprayer of liquid-cooled, includes:

the mounting seat comprises a mounting seat 1, wherein a through cavity 2 is vertically formed in the center of the mounting seat 1, a U-shaped cooling pipe 3 is arranged in the mounting seat 1, the U-shaped cooling pipe 3 bypasses the through cavity 2 and is arranged in an inclined manner relative to a horizontal plane, a liquid inlet 4 and a liquid outlet 5 are respectively formed in the side wall of the mounting seat 1 corresponding to two ends of the U-shaped cooling pipe 3, one end of the U-shaped cooling pipe 3 is communicated with the liquid inlet 4, and the other end of the U-shaped cooling pipe 3 is communicated with the liquid outlet 5;

a cooling liquid inlet joint 6 which is connected to the liquid inlet 4 and is communicated with the corresponding end of the U-shaped cooling pipe 3 through the liquid inlet 4;

a cooling liquid outlet joint 7 which is connected to the liquid outlet 5 and is communicated with the corresponding end of the U-shaped cooling pipe 3 through the liquid outlet 5;

metering valve body 8, its vertical installation leads to in chamber 2, metering valve body 8's upper end has the feed liquor end, the lower extreme has a liquid end, urea solution sprays from a liquid end and gets into the blast pipe, metering valve body 8's upper end outside cover is equipped with urea feed liquor union coupling 9, the feed liquor end passes through urea feed liquor union coupling 9 and outside urea feed liquor pipe intercommunication, fixed connection between urea feed liquor union coupling 9's the lower extreme and the upper end of mount pad 1 to the upper end encapsulation with metering valve body 8 leads to in chamber 2.

The liquid-cooled electric control urea solution injector of the utility model is fixed at the tail gas treatment end of a passenger vehicle or a commercial vehicle by utilizing the mounting seat 1, preferably, the lower end of the mounting seat 1 is symmetrically provided with a plurality of three bolt holes 11 to facilitate the fixing and the installation of the mounting seat 1, the upper end of the mounting seat 1 is provided with a power interface 12 according to the electric connection requirement of the metering valve body 8 on the mounting seat 1, so as to conveniently plug and connect a power connector to electrify the metering valve body 8, the metering valve body 8 adopts a common structure product, such as an electromagnetic metering valve, only the liquid inlet end of the metering valve body 8 is positioned at the upper side and the liquid outlet end is positioned at the lower side to facilitate the structure and the volume optimization, the liquid outlet end of the metering valve body 8 is used for spraying urea solution, the mounting seat 1 and the U-shaped cooling pipe 3 are both made of materials with easy heat conduction, the urea solution enters the liquid inlet end of the metering valve body 8 from the urea liquid inlet pipe through the urea liquid inlet pipe connector 9, then the urea solution is jetted from the liquid outlet end to enter an exhaust pipe with higher temperature, the metering valve body 8 also generates heat when working, the urea solution flows through the metering valve body 8, simultaneously, cooling liquid is introduced from a cooling liquid inlet joint 6, the cooling liquid enters a U-shaped cooling pipe 3 in the mounting seat 1 through a liquid inlet 4 and then flows out from a liquid outlet 5, and leaves a liquid-cooled electric control urea solution ejector from a cooling liquid outlet joint 7 to recycle the cooling liquid, the U-shaped cooling pipe 3 is arranged around the through cavity 2, the U-shaped cooling pipe 3 is arranged upwards in an inclined way around the horizontal plane, two ends of the U-shaped cooling pipe 3 are upwards inclined, compared with a single U-shaped pipeline cooling mode which is arranged horizontally, the surrounding area of the U-shaped cooling pipe 3 around the metering valve body 8 in the through cavity 2 is larger, the cooling liquid rapidly flows around the metering valve body 8, and the cooling liquid is quicker in replacement, thereby showing and improving cooling efficiency, taking away the heat in the mount pad 1 for the coolant liquid through conducting heat, guaranteeing to be close to the ambient temperature around the metering valve body 8, preventing the crystallization of urea solution, in addition, the utility model discloses an automatically controlled urea solution sprayer of liquid-cooled is simpler than the cooling structure in polycyclic cooling tube, also is convenient for install and the optimization of volume, and thickness diminishes, also is favorable to whole heat dissipation.

In another technical scheme, as shown in fig. 3, the lower end of the metering valve body 8 is vertically in a stepped cylindrical structure, the diameter of each step is reduced from top to bottom, the shape of the lower end of the through cavity 2 is consistent with the lower end of the metering valve body 8, the inner side wall of the lower end of the through cavity 2 is attached to the outer side wall of the lower end of the metering valve body 8, the diameter of the upper end of the through cavity 2 is larger than that of the upper end of the metering valve body 8, so that a gap 10 is formed around the upper end of the metering valve body 8, and the mounting seat 1 is made of a metal material.

The lower end of the metering valve body 8 and the lower end of the through cavity 2 are both arranged to be of a step-shaped cylindrical structure with the same shape, so that the metering valve body 8 is convenient to install and is radially limited, the lower end of the metering valve body 8 is abutted against the lower end of the through cavity 2, the upper end of the metering valve body 8 is vertically limited through the installation of a urea liquid inlet pipe joint 9, so that the metering valve body 8 is stably installed in the through cavity 2, the lower end of the metering valve body 8 is in contact with the inner side wall of the lower end of the through cavity 2 in a fitting manner, the heat of the metering valve body 8 is transferred to the installation seat 1 made of a metal material so as to be convenient to dissipate the heat, meanwhile, the inner diameter of the upper end of the through cavity 2 is larger than the outer diameter of the metering valve body 8, a gap 10 is formed around the upper end of the metering valve body 8, the gap 10 enables the upper end of the metering valve body 8 to be in direct contact with the inner side wall of the installation seat 1 at the upper end of the through cavity 2, and the heat dissipation performance of the metal is better than that of the air, the provision of the gap 10 thus isolates the heat absorbed by the mounting base from being transferred to the upper end of the metering valve body 8, thereby increasing the cooling effect as a whole.

In another technical solution, as shown in fig. 1, 3 and 4, two ends of the U-shaped cooling tube 3 are located at the same level, and the liquid outlet 5 and the liquid inlet 4 are located at the same level.

Through setting up U type cooling tube 3 position and angle in mount pad 1, carry out axial symmetry's cooling to metering valve body 8, improve the homogeneity of cooling effect, and make 1 inner structure of mount pad compacter, also more conveniently dismantle coolant liquid inlet joint 6 and coolant liquid play liquid joint 7.

In another technical solution, as shown in fig. 4, the liquid outlet 5 and the liquid inlet 4 are disposed at a position of the mounting seat 1 below the gap 10.

The upper end of the metering valve body 8 is isolated from the mounting seat 1 through the gap 10, the heat of the whole metering valve body 8 is dissipated through the mounting seat 1 which is conducted to a metal material, the liquid outlet 5 and the liquid inlet 4 are arranged at the lower end close to the metering valve body 8, the centralized cooling is convenient, and the cooling efficiency and the cooling quality are improved.

In another technical scheme, as shown in fig. 4 and 5, the liquid inlet 4 and the liquid outlet 5 are close to one end of the U-shaped cooling pipe 3, the cooling liquid inlet joint 6 is in threaded connection with the inner wall of the liquid inlet 4, and the cooling liquid outlet joint 7 is in threaded connection with the inner wall of the liquid outlet 5.

The mode through threaded connection is convenient for coolant liquid inlet joint 6 and coolant liquid to go out quick installation and the dismantlement of liquid joint 7, all sets up the sealing washer by the one end of U type cooling tube 3 at inlet 4 and liquid outlet 5, and coolant liquid inlet joint 6 and coolant liquid go out liquid joint 7 and pass through in inlet 4 and the liquid outlet 5 that the helicitic texture screw in corresponds, can contradict or extrude the sealing washer, reach better sealed effect, prevent the leakage of coolant liquid.

To sum up, the utility model comprises a mounting seat, a metering valve body, a coolant liquid inlet joint and a coolant liquid outlet joint, wherein the metering valve body is cooled while the metering valve body is fixedly mounted through the mounting seat, a U-shaped cooling pipe is obliquely arranged in the mounting seat and is wound around the metering valve body, compared with a multi-winding cooling structure, the cooling structure is simpler, compared with a single-winding structure, the path and the area of the coolant circulating in the mounting seat are increased, and the heat obtained by the mounting seat from the contact of the metering valve body is taken away by the fast flowing coolant through the heat transfer principle, so that the cooling efficiency is obviously improved, the ambient temperature close to the periphery of the metering valve body is ensured, the crystallization of urea solution is prevented, in addition, the direct contact of the inner side wall of a through cavity and the upper end of the metering valve body is isolated by forming a gap around the upper end of the metering valve body, and the heat is prevented from being transferred to the upper end of the metering valve body, the cooling quality is ensured, the cooling liquid can intensively cool the lower end of the mounting seat, and the cooling efficiency is further improved.

While the embodiments of the invention have been disclosed above, it is not limited to the applications set forth in the specification and illustrated embodiments, but is capable of being applied in all kinds of fields adapted for the invention, and further modifications may readily occur to those skilled in the art, and it is therefore not intended to be limited to the specific details set forth and all the accompanying drawings described herein without departing from the general concept defined by the appended claims and their equivalents.

Claims

1. A liquid-cooled electronically controlled urea solution injector, comprising:

2. A liquid-cooled electronically controlled urea solution injector as claimed in claim 1, wherein the lower end of said metering valve body is a cylindrical structure with steps in the vertical direction, and the diameter of each step decreases from top to bottom, the shape of the lower end of said through cavity is identical to the shape of the lower end of said metering valve body, the inner side wall of the lower end of said through cavity is attached to the outer side wall of the lower end of said metering valve body, the diameter of the upper end of said through cavity is larger than the diameter of the upper end of said metering valve body, so as to form a gap around the upper end of said metering valve body, and said mounting seat is made of metal.

3. A liquid-cooled electronically controlled urea solution injector as claimed in claim 2, wherein said U-shaped cooling tube has ends at the same level, and said liquid outlet and said liquid inlet are at the same level.

4. A liquid-cooled electronically controlled urea solution injector as claimed in claim 3, wherein said liquid outlet and said liquid inlet are disposed at a location below said mounting seat below said gap.

5. The liquid-cooled electronically controlled urea solution injector of claim 1, wherein said inlet port and said outlet port are each provided with a sealing ring at an end thereof adjacent to said U-shaped cooling tube, said coolant inlet fitting is threadably engaged with an inner wall of said inlet port, and said coolant outlet fitting is threadably engaged with an inner wall of said outlet port.