Anti-crystallization vehicle urea tank

Abstract

The utility model relates to the technical field of vehicle urea storage container, specifically speaking is a kind of anti-crystallization vehicle urea storage tank, including storage tank body, the agitating assembly is arranged in the inner chamber of storage tank body, the sealing bearing is arranged on the agitating assembly, the motor is arranged in the one side of agitating assembly, the feed inlet and discharge port are closed and arranged in the both sides of storage tank body, the fixed setting of several support columns is arranged in the one side of storage tank body, make urea solution continue to flow in the inner chamber of storage tank body, prevent local concentration excessively high and produce sediment crystallization.

Description

Technical Field

[0001] This utility model relates to the technical field of automotive urea storage containers, and more specifically, to an anti-crystallization automotive urea storage tank. Background Technology

[0002] A vehicle urea storage tank is a special container installed on diesel vehicles to store urea solution (vehicle urea). It is usually made of corrosion-resistant materials, such as high-density polyethylene. The tank sprays the urea solution into the selective catalytic reduction device of the diesel vehicle's exhaust gas treatment system through an injection system. Under the action of a catalyst, the urea solution reacts chemically with nitrogen oxides in the exhaust gas, converting them into harmless nitrogen and water. This effectively reduces the emission of nitrogen oxides in diesel vehicle exhaust and meets increasingly stringent environmental emission standards.

[0003] For example, Chinese patent disclosure: A vehicle urea storage tank, application number: CN202223520968.6, includes a protective mechanism. An installation mechanism is fixedly connected to one side of the protective mechanism. The installation mechanism includes an arc-shaped plate, a built-in component, and fixing screws. The built-in component is fixedly connected to the inner wall of the arc-shaped plate, and the fixing screws are movably connected inside the built-in component. The protective mechanism and the installation mechanism are connected by welding. The horizontal center lines of the arc-shaped plate and the built-in component coincide. During operation, the internal installation mechanism can be used for connection. The fixing screws can be inserted into the built-in component and rotated to fix the built-in component and the arc-shaped plate, thus solving the problem of insufficient sturdiness when fixing one side during operation, achieving a more secure installation.

[0004] However, with the widespread application of selective catalytic reduction technology in diesel vehicles, the storage and anti-crystallization issues of automotive urea solution have become increasingly prominent. When urea solution is left to stand in the storage tank for a long time, it is easy for local concentrations to become too high, which in turn leads to precipitation and crystallization, causing injection system failure and affecting the normal operation of catalytic reduction. Utility Model Content

[0005] The main purpose of this utility model is to provide an anti-crystallization urea storage tank for vehicles, which can effectively solve the problem of storage and anti-crystallization of urea solution in vehicles, which has become increasingly prominent with the widespread application of selective catalytic reduction technology in diesel vehicles. When urea solution is left to stand in the storage tank for a long time, local concentrations are prone to become too high, which in turn leads to precipitation and crystallization, causing injection system failure and affecting the normal operation of catalytic reduction.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a urea storage tank for vehicles with anti-crystallization, comprising a storage tank body, an agitator assembly disposed in the inner cavity of the storage tank body, a sealed bearing disposed on the agitator assembly, a motor disposed on one side of the agitator assembly, an inlet and an outlet disposed on both sides of the storage tank body, and a plurality of support columns fixedly disposed on one side of the storage tank body.

[0007] Preferably, the sealed bearing is rotatably connected to the tank body, and the motor is fixedly mounted on the tank body.

[0008] Preferably, the stirring assembly includes an assembly base with several grooves, a stirring paddle slidably disposed in the grooves, a spring disposed on one side of the stirring paddle, and several ball bearings disposed on the side of the stirring paddle away from the spring.

[0009] Preferably, the inner wall of the groove is provided with several sealing layers.

[0010] Preferably, the component base is rotatably connected to the tank body.

[0011] Preferably, the spring is fixedly installed in the groove.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] (1) When this utility model is used, urea is fed into the inner cavity of the storage tank body through the feed port. Then, the component base is rotated by the motor. The component base drives the stirring paddle. The stirring paddle stirs the urea in the inner cavity of the storage tank body, so that the urea solution flows continuously in the inner cavity of the storage tank body, preventing local concentration from being too high and causing precipitation and crystallization. At the same time, the spring can make one side of the stirring paddle always stick to the inner wall of the storage tank body even when the tank body is deformed during vehicle movement. The strong shear flow is generated by the wall-mounted rotation, so that the urea solution near the tank wall is fully mixed with the central area, improving the stirring and mixing effect and preventing local concentration from being too high. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of an anti-crystallization vehicle urea storage tank according to the present invention;

[0015] Figure 2 This is a schematic diagram of the internal structure of an anti-crystallization vehicle urea storage tank according to the present invention;

[0016] Figure 3 This is a schematic diagram of the stirring assembly in an anti-crystallization vehicle urea storage tank according to the present invention.

[0017] In the diagram: 1. Tank body; 2. Agitator assembly; 201. Assembly base; 202. Groove; 203. Agitator paddle; 204. Spring; 205. Ball bearing; 206. Sealing layer; 3. Sealed bearing; 4. Motor; 5. Inlet; 6. Outlet; 7. Support column. Detailed Implementation

[0018] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0019] like Figure 1 and Figure 2 As shown, an anti-crystallization vehicle urea storage tank includes a tank body 1, an agitator 2 is provided in the inner cavity of the tank body 1, a sealed bearing 3 is provided on the agitator 2, a motor 4 is provided on one side of the agitator 2, an inlet 5 and an outlet 6 are provided on both sides of the tank body 1, and several support columns 7 are fixedly provided on one side of the tank body 1.

[0020] like Figure 3 As shown, in another embodiment of the present invention, the stirring assembly 2 includes an assembly base 201, a plurality of grooves 202 are provided on the assembly base 201, a stirring paddle 203 is slidably disposed in the grooves 202, a spring 204 is provided on one side of the stirring paddle 203, and a plurality of balls 205 are provided on the side of the stirring paddle 203 away from the spring 204.

[0021] The inner wall of the groove 202 is provided with a plurality of sealing layers 206;

[0022] When it is necessary to stir the urea in the inner cavity of the storage tank body 1, the motor 4 causes the component base 201 to rotate, and the component base 201 drives the stirring paddle 203. The stirring paddle 203 stirs the urea in the inner cavity of the storage tank body 1, so that the urea solution flows continuously in the inner cavity of the storage tank body 1, preventing local high concentration and precipitation crystallization. At the same time, the spring 204 can keep one side of the stirring paddle 203 in contact with the inner wall of the storage tank body 1 even when the tank body is deformed during vehicle movement. The strong shear flow generated by the wall-mounted rotation makes the urea solution near the tank wall fully mixed with the central area, improving the stirring and mixing effect. The ball bearing 205 is responsible for reducing the friction between the stirring paddle 203 and the inner wall of the storage tank body 1.

[0023] The working principle of this type of anti-crystallization vehicle urea storage tank:

[0024] In use, urea is fed into the inner cavity of the storage tank body 1 through the feed inlet 5. Then, the component base 201 is rotated by the motor 4. The component base 201 drives the stirring paddle 203, which stirs the urea in the inner cavity of the storage tank body 1, so that the urea solution flows continuously in the inner cavity of the storage tank body 1, preventing local high concentration and precipitation crystallization. At the same time, the spring 204 can keep one side of the stirring paddle 203 in contact with the inner wall of the storage tank body 1 even when the tank body is deformed during vehicle movement. The strong shear flow generated by the wall-mounted rotation makes the urea solution near the tank wall fully mixed with the central area, improving the stirring and mixing effect and preventing local high concentration.

[0025] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. All obvious variations or modifications derived from the technical solutions of the present invention are still within the protection scope of the present invention.

Claims

1. Anti-crystallization tank for automotive urea, comprising a tank body (1), characterized in that: The storage tank body (1) is provided with a stirring assembly (2) in its inner cavity. A sealed bearing (3) is provided on the stirring assembly (2). A motor (4) is provided on one side of the stirring assembly (2). The storage tank body (1) is provided with a closed inlet (5) and an outlet (6) on both sides. Several support columns (7) are fixedly provided on one side of the storage tank body (1). The stirring assembly (2) includes an assembly base (201), on which a plurality of grooves (202) are provided. A stirring paddle (203) is slidably disposed in the grooves (202). A spring (204) is provided on one side of the stirring paddle (203), and a plurality of balls (205) are provided on the side of the stirring paddle (203) away from the spring (204).

2. A crystallization preventing urea tank for vehicles according to claim 1, characterized in that: The sealed bearing (3) is rotatably connected to the tank body (1), and the motor (4) is fixedly installed on the tank body (1).

3. A crystallization preventing urea tank for vehicles according to claim 2, characterized in that: The inner wall of the groove (202) is provided with several sealing layers (206).

4. A crystallization preventing urea tank for vehicles according to claim 3, characterized in that: The component base (201) is rotatably connected to the tank body (1).

5. A crystallization preventing urea tank for vehicles according to claim 4, characterized in that: The spring (204) is fixedly installed in the groove (202).

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