Urea recycling and filling device for engine test

Abstract

The utility model discloses a urea recycling and filling device for an engine test, belongs to the technical field of engines, and solves the problems that a solution inlet of an existing urea tank is small, and residual urea is difficult to recycle. The urea recycling and filling device for the engine test comprises a movable cart, a control cabinet is arranged on the cart, a controller and an oil well pump are arranged in the control cabinet, the controller is electrically connected with the oil well pump, an oil filling pipe is arranged at an oil outlet of the oil well pump, one end of the oil filling pipe penetrates through the control cabinet and extends to the outer side of the cart, and the other end of the oil filling pipe penetrates through the control cabinet and extends to the outer side of the cart. A refueling gun is arranged at one end of the refueling pipe, a urea recycling tank is arranged on the portion, on one side of the control cabinet, of the cart, the top of the urea recycling tank is in threaded connection with a sealing cover, and a connecting pipe communicated with the urea recycling tank is arranged at the bottom of the urea recycling tank. According to the urea recycling and filling device for the engine test, the effective utilization of residual urea liquid is realized, and the production cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of engine technology, and more specifically, it relates to a urea recovery and refueling device for engine testing. Background Technology

[0002] During engine testing, urea is typically added. Existing urea tanks are mostly irregularly shaped with a drain bolt at the bottom. To recover residual urea, the tank is lifted, and the drain bolt is loosened to release the liquid. However, because the solution inlet diameter of the urea tank is only 22mm, directly aligning the drain bolt of the old urea tank with the new one and draining the urea from the old tank into the new one is difficult, making recycling extremely challenging. Usually, the urea is simply discarded, leading to resource waste. Furthermore, if the residual urea is poured into a container, such as a bucket, it is difficult to refill it into the engine's urea tank for reuse. Therefore, there is an urgent need to design a urea recovery and refilling device for engine testing. Utility Model Content

[0003] The technical problem to be solved by this utility model is to address the above-mentioned shortcomings of the prior art by providing a urea recovery and filling device for engine testing, which realizes the effective utilization of residual urea solution, effectively avoids resource waste, and reduces production costs.

[0004] The technical solution of this utility model is as follows: A urea recovery and refueling device for engine testing includes a movable trolley, on which a control cabinet is mounted. The control cabinet contains a controller and an oil pump. The controller is electrically connected to the oil pump. The oil pump's outlet has a refueling pipe. One end of the refueling pipe passes through the control cabinet and extends to the outside of the trolley. One end of the refueling pipe has a refueling nozzle. A urea recovery tank is mounted on the trolley on one side of the control cabinet. A sealing cap is threadedly connected to the top of the urea recovery tank. A connecting pipe communicating with the bottom of the urea recovery tank is provided. A shut-off valve is mounted on the connecting pipe. The other end of the connecting pipe is connected to the oil pump's inlet. A refueling pipe is located on the top of the urea recovery tank. The sealing cap is threadedly connected to the refueling pipe. A filter screen is located inside the refueling pipe. Multiple equally spaced support blocks are arranged on the side of the top of the filter screen. All support blocks are movably overlapped on the top surface of the refueling pipe. The filter screen has a funnel-shaped structure.

[0005] As a further improvement, the oil pump has an exhaust pipe at its exhaust port, and an exhaust valve is provided on the exhaust pipe.

[0006] Furthermore, an installation plate is provided between the trolley and the urea recovery tank, and the installation plate is provided with an installation groove, in which the urea recovery tank is movably inserted.

[0007] Furthermore, one side wall of the mounting groove is provided with an inclined surface.

[0008] Furthermore, the top of the trolley is a rectangular frame with a hollow structure, and a funnel is detachably installed on the top of the trolley. The bottom of the funnel is fitted with a sealing cap, and the bottom surface of the funnel (14) is in contact with the top surface of the urea recovery tank.

[0009] Furthermore, the bottom of the funnel is provided with an annular sealing ring.

[0010] Furthermore, the trolley is equipped with a handrail on one side.

[0011] Furthermore, the bottom of the trolley is equipped with casters with self-locking devices.

[0012] Beneficial effects

[0013] Compared with the prior art, this utility model has the following advantages:

[0014] 1. This utility model discloses a urea recovery and refueling device for engine testing. By setting the trolley above the urea recovery tank as a hollow rectangular frame, it is convenient to pour the urea from the old urea tank into the urea recovery tank to realize the recovery of residual urea. Then, the urea in the urea recovery tank is added to the engine through an oil pump and a refueling gun, realizing the effective utilization of residual urea liquid, effectively avoiding resource waste and reducing production costs.

[0015] 2. The present invention provides a urea recovery and filling device for engine testing. By installing a removable filter screen on the top of the urea recovery tank, the filter screen can filter out impurities in the urea, thus preventing the oil pump from being blocked by impurities in the urea during the urea extraction process. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0017] Figure 2 for Figure 1 Enlarged structural diagram of A in the middle;

[0018] Figure 3 This is a partial cross-sectional structural diagram of the urea recovery tank in this utility model;

[0019] Figure 4 for Figure 3 Enlarged structural diagram of B in the middle;

[0020] Figure 5 This is a top view of the filter screen in this utility model.

[0021] Figure 6 This is a side cross-sectional view of the mounting groove in this utility model.

[0022] The components are: 1-trolley, 2-control cabinet, 3-fuel nozzle, 4-urea recovery tank, 5-connecting pipe, 6-sealing cap, 7-handrail, 8-exhaust pipe, 9-exhaust valve, 10-stop valve, 11-filling pipe, 12-filter screen, 13-support block, 14-funnel, 15-sealing ring, 16-fuel pipe, 17-caster wheel, 18-mounting plate, 19-mounting groove, 20-sloping surface. Detailed Implementation

[0023] The present invention will be further described below with reference to specific embodiments shown in the accompanying drawings.

[0024] See Figure 1-4 A urea recovery and filling device for engine testing includes a movable trolley 1, on which a control cabinet 2 is mounted. The control cabinet 2 contains a controller and an oil pump. The controller and the oil pump are electrically connected. The oil pump's outlet has a filling pipe 16. One end of the filling pipe 16 passes through the control cabinet 2 and extends to the outside of the trolley 1. One end of the filling pipe 16 has a filling nozzle 3. The filling nozzle 3 is an existing product; it automatically shuts off when the urea tank is full. A urea recovery tank 4 is mounted on the trolley 1 on one side of the control cabinet 2. The top of the urea recovery tank 4 is threaded with a sealing cap 6. The bottom of the urea recovery tank 4 is provided with a connecting pipe 5 that communicates with it. A shut-off valve 10 is provided on the connecting pipe 5. The other end of the connecting pipe 5 is connected to the oil inlet of the oil pump. The top of the urea recovery tank 4 is provided with a filling pipe 11. The sealing cap 6 is threadedly connected to the filling pipe 11. A filter screen 12 is provided inside the filling pipe 11. Multiple support blocks 13 are arranged at equal intervals on the side of the top of the filter screen 12. The multiple support blocks 13 are movably overlapped on the top surface of the filling pipe 11. The filter screen 12 has a funnel-shaped structure.

[0025] In use, the trolley 1 is moved to the urea tank storage location using the casters 17. Then, the sealing cover 6 on the top of the urea recovery tank 4 is opened, and the old urea tank is lifted onto the trolley 1 on the urea recovery tank 4 using a crane or other lifting equipment. Then, the drain bolt is removed, and the residual solution in the old urea tank can be poured into the urea recovery tank 4 to realize the recovery of residual urea. Then, the trolley 1 is moved to the side of the engine, and the urea in the urea recovery tank 4 is added to the engine using the oil pump and the oil nozzle 3. The oil nozzle 3 can automatically shut off after it is full to avoid excessive urea being added to the engine and causing overflow. This realizes the effective utilization of residual urea solution, effectively avoids resource waste, and reduces production costs.

[0026] In this embodiment, the oil pump has an exhaust pipe 8 at its exhaust port, and an exhaust valve 9 is installed on the exhaust pipe 8. When the urea level in the urea recovery tank 4 is too low, the oil pump is prone to drawing in air during the extraction process. This air can cause the oil pump to operate unstably, generating noise and vibration, and even affecting the output pressure and flow rate of the oil pump, thereby affecting the performance of the oil pump. Long-term use can also affect the service life of the oil pump. When the oil pump draws in air, the exhaust valve 9 can be manually opened to expel the air from the oil pump through the exhaust pipe 8.

[0027] In this embodiment, a mounting plate 18 is provided between the trolley 1 and the urea recovery tank 4. The mounting plate 18 is provided with a mounting groove 19. The urea recovery tank 4 is movably inserted into the mounting groove 19. The urea recovery tank 4 is fixed in the mounting groove 19, which improves the stability of the urea recovery tank 4 placed on the trolley 1.

[0028] In this embodiment, one side wall of the mounting groove 19 is provided with an inclined surface 20. When it is necessary to remove the urea recovery tank 4 from the trolley 1, one side of the urea recovery tank 4 is lifted so that the bottom of the urea recovery tank 4 is on the inclined surface 20. Then, the urea recovery tank 4 is pushed from the other side to remove the urea recovery tank 4 from the mounting groove 19. Then, it is lifted off the trolley 1, which can effectively reduce the labor intensity of the operator.

[0029] In this embodiment, the top of the cart 1 is a rectangular frame with a hollow structure, which facilitates placing the old urea tank on the cart 1 and pouring the residual solution in the old urea tank into the urea recovery tank 4; and a funnel 14 is detachably installed on the top of the cart 1. The bottom of the funnel 14 is fitted with the outer periphery of the sealing cap 6, and the bottom surface of the funnel 14 is in contact with the top surface of the urea recovery tank 4. The bottom of the funnel 14 is in contact with the top surface of the urea recovery tank 4 outside the filling pipe 11. When the old urea tank is placed on the cart 1 and the residual urea inside is recovered into the urea recovery tank 4, the funnel 14 can prevent the falling urea from splashing around.

[0030] In this embodiment, an annular sealing ring 15 is provided at the bottom of the funnel 14 to improve the sealing between the funnel 14 and the urea recovery tank 4 and prevent urea from seeping through the gap between the funnel 14 and the urea recovery tank 4. When a small amount of urea spills into the space between the funnel 14 and the filling pipe 11, it can be wiped away with a dry towel or other tools.

[0031] Preferably, the top of the urea recovery tank 4 is limited by the cooperation of the funnel 14 and the filling pipe 11, and the bottom of the urea recovery tank 4 is limited by placing the urea recovery tank 4 in the mounting groove 19, thereby fixing both ends of the urea recovery tank 4 and improving the stability of the urea recovery tank 4 placed on the trolley 1.

[0032] In this embodiment, a handrail 7 is provided on one side of the trolley 1, which makes it easy for staff to push the trolley 1 through the handrail 7 and quickly move the trolley 1 to the designated position, thereby improving work efficiency.

[0033] In this embodiment, the bottom of the trolley 1 is provided with casters 17 with self-locking devices to facilitate the movement of the trolley 1. When the trolley 1 moves to the designated position, the self-locking devices on the casters 17 can lock it to prevent the trolley 1 from moving during operation.

[0034] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present utility model. These modifications and improvements will not affect the effectiveness of the present utility model or the practicality of the patent.

Claims

1. A urea recovery and refueling device for engine testing, characterized in that, The system includes a movable trolley (1), on which a control cabinet (2) is mounted. The control cabinet (2) contains a controller and an oil pump. The controller is electrically connected to the oil pump. The oil pump has an oil outlet with a refueling pipe (16). One end of the refueling pipe (16) passes through the control cabinet (2) and extends to the outside of the trolley (1). One end of the refueling pipe (16) has a refueling nozzle (3). A urea recovery tank (4) is mounted on the trolley (1) on one side of the control cabinet (2). The top of the urea recovery tank (4) is threaded with a sealing cap (6). The bottom of the urea recovery tank (4)... The unit is provided with a connecting pipe (5) connected to it. The connecting pipe (5) is provided with a shut-off valve (10). The other end of the connecting pipe (5) is connected to the oil inlet of the oil pump. The top of the urea recovery tank (4) is provided with a filling pipe (11). The sealing cap (6) is threadedly connected to the filling pipe (11). The filling pipe (11) is provided with a filter screen (12). The top side of the filter screen (12) is provided with multiple equally spaced support blocks (13). The multiple support blocks (13) are movably overlapped on the top surface of the filling pipe (11). The filter screen (12) has a funnel-shaped structure.

2. The urea recovery and refueling device for engine testing according to claim 1, characterized in that, The oil pump has an exhaust pipe (8) at its exhaust port, and an exhaust valve (9) is provided on the exhaust pipe (8).

3. The urea recovery and refueling device for engine testing according to claim 1, characterized in that, An installation plate (18) is provided between the trolley (1) and the urea recovery tank (4), and an installation groove (19) is provided on the installation plate (18), and the urea recovery tank (4) is movably inserted into the installation groove (19).

4. The urea recovery and refueling device for engine testing according to claim 3, characterized in that, The mounting groove (19) has an inclined surface (20) on one side wall.

5. The urea recovery and refueling device for engine testing according to claim 1, characterized in that, The top of the trolley (1) is a rectangular frame with a hollow structure, and a funnel (14) is detachably installed on the top of the trolley (1). The bottom of the funnel (14) is fitted with the outer periphery of the sealing cover (6), and the bottom surface of the funnel (14) is in contact with the top surface of the urea recovery tank (4).

6. The urea recovery and refueling device for engine testing according to claim 5, characterized in that, The bottom of the funnel (14) is provided with an annular sealing ring (15).

7. The urea recovery and refueling device for engine testing according to claim 1, characterized in that, The trolley (1) is provided with a handrail (7) on one side.

8. The urea recovery and refueling device for engine testing according to claim 1, characterized in that, The bottom of the trolley (1) is equipped with casters (17) with self-locking devices.

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