Urea melt pump
Patent Information
- Application Number
- CN202521848008.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-28
- Publication Date
- 2026-09-04
- Estimated Expiration
- 2035-08-28
AI Technical Summary
[0003]目前,现有技术中的尿素熔融泵在使用过程中,由于部分现有的尿素熔融泵通常不便于对尿素进行过滤,而尿素中可能存在杂质或固体颗粒,这些杂质如果进入泵体,可能会造成磨损、堵塞或腐蚀;且部分现有设备的底部与地面之间大多是直接贴合的,缺少一定的抗振结构,而尿素熔融泵在运行过程中,泵轴的高速旋转和介质流动会产生振动,若缺乏抗振结构,振动能量无法有效缓冲,可能会对其内部组件或是连接处造成一定的影响,因此亟需一种尿素熔融泵来解决上述问题
[0013] The technical effects and advantages of this utility model are as follows: This utility model can filter urea flowing through the filter cylinder through the filter element. With the provision of two sets of locking grooves and locking blocks, the operator only needs to rotate the sealing cover when the lower surface of the sealing cover is attached to the upper surface of the filter cylinder to complete the installation and removal of the sealing cover. This design can minimize the entry of impurities or solid particles in the urea into the pump body, thereby minimizing the risk of pump body wear, blockage or corrosion.
Smart Images

Figure CN224717924U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of urea melting pump technology; more specifically, it relates to a urea melting pump. Background Technology
[0002] Urea melting pumps are key equipment in the field of urea production and application. They are mainly used to transport high-temperature (drive motor (13) 0-filter cartridge (15) 0℃) and high-viscosity molten urea (such as the melt after urea synthesis or urea solution in SCR system). Their performance directly affects the continuity of urea production, equipment life and environmental emission compliance rate.
[0003] Currently, existing urea melting pumps often have several drawbacks during operation. Firstly, they are not ideal for filtering urea, which may contain impurities or solid particles. These impurities, if they enter the pump body, can cause wear, blockage, or corrosion. Secondly, the bottom of some existing pumps is directly attached to the ground, lacking adequate vibration-damping structures. During operation, the high-speed rotation of the pump shaft and the flow of the medium generate vibrations. Without vibration-damping structures, these vibrations cannot be effectively buffered, potentially affecting internal components or connections. Therefore, a new urea melting pump is urgently needed to address these issues. Utility Model Content
[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a urea melting pump to solve the problems existing in the background art.
[0005] This utility model provides the following technical solution: a urea melting pump, comprising:
[0006] The main structure includes a fixed base, a filter cylinder, a locking groove, a sealing cover, and a locking block. Both the locking groove and the locking block are provided in two sets, and the lower surface of the sealing cover is attached to the upper surface of the filter cylinder.
[0007] The vibration-resistant structure has four sets, and includes a connecting seat, a connecting plate and a fixing plate. The four sets of connecting seats are respectively fixedly connected to both ends of the two sides of the fixed base.
[0008] Preferably, a buffer pad is fixedly connected to the upper surface of the fixed base, and a drive motor is installed on one side of the upper surface of the buffer pad. A pump body is installed at the output end of the drive motor. The filter cylinder is connected to the interior of one side of the pump body. The buffer pad is made of rubber, which can provide a certain vibration resistance effect for the drive motor and the pump body during operation.
[0009] Preferably, a connection port is fixedly connected to the outer surface of one side of the filter cylinder, and a filter element is provided inside the filter cylinder. Two sets of locking grooves are respectively opened inside the upper side of the inner surface of the filter cylinder. The connection port can be connected to the urea delivery pipe. After the urea enters the interior of the filter cylinder, it will be filtered through the filter element.
[0010] Preferably, a sealing gasket is fixedly connected to the middle position of the lower surface of the sealing cover, and two sets of locking blocks are fixedly connected to both sides of the lower surface of the sealing cover. The outer surface of the sealing gasket is in contact with the inner surface of the filter cartridge. The two sets of locking blocks are stepped and are respectively locked into the interior of the two sets of locking grooves. The sealing gasket is made of rubber. After the sealing gasket is in contact with the inner surface of the filter cartridge, it can significantly improve the sealing performance inside the filter cartridge and minimize the leakage of urea inside the filter cartridge through the sealing cover.
[0011] Preferably, a sliding sleeve is fixedly connected to the outer surface of both sides of the connecting seat, the connecting plate is fixedly connected to the lower surface of the connecting seat, and an anti-vibration spring is fixedly connected to the middle position of the upper surface of the fixed plate, with the upper surface of the anti-vibration spring adhering to the lower surface of the connecting plate. The four sets of connecting seats will move due to the vibration of the main structure as a whole, thereby causing the connecting plate to push against the anti-vibration spring and contract. The anti-vibration spring can buffer the vibration of the main structure to a certain extent.
[0012] Preferably, both sides of the upper surface of the fixed plate are fixedly connected with connecting columns, and the upper surfaces of the two sets of connecting columns are fixedly connected with limiting columns. The two sets of limiting columns are respectively inserted into the interior of the two sets of sliding sleeves. The setting of the two sets of limiting columns and sliding sleeves can improve the stability of the connecting seat when it moves and prevent the connecting seat from shifting when it moves.
[0013] The technical effects and advantages of this utility model are as follows: This utility model can filter urea flowing through the filter cylinder through the filter element. With the provision of two sets of locking grooves and locking blocks, the operator only needs to rotate the sealing cover when the lower surface of the sealing cover is attached to the upper surface of the filter cylinder to complete the installation and removal of the sealing cover. This design can minimize the entry of impurities or solid particles in the urea into the pump body, thereby minimizing the risk of pump body wear, blockage or corrosion.
[0014] This utility model, through the arrangement of four sets, allows it to move due to the overall vibration of the main structure. When the connecting seat moves, it can drive the connecting plate to abut against the anti-vibration spring, causing it to contract. The anti-vibration spring itself has high elastic potential energy, which can buffer the vibration of the main structure to a certain extent. This design can have a significant anti-vibration effect on the main structure as a whole, thereby maximizing the service life of the equipment and reducing the noise generated during equipment operation to a certain extent. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0016] Figure 2 This is a three-dimensional structural diagram of the main structure of this utility model.
[0017] Figure 3 This is a partial exploded view of the three-dimensional structure of the main body of this utility model.
[0018] Figure 4 This is a partial exploded view of the three-dimensional structure of the main body of this utility model.
[0019] Figure 5 This is a three-dimensional structural diagram of the vibration-resistant structure of this utility model.
[0020] Figure 6 This is a three-dimensional exploded view of the vibration-resistant structure of this utility model.
[0021] The attached diagram is labeled as follows: 1. Main structure; 11. Fixed base; 12. Buffer pad; 13. Drive motor; 14. Pump body; 15. Filter cartridge; 16. Connection port; 17. Filter element; 18. Engaging groove; 19. Sealing cover; 110. Sealing gasket; 111. Engaging block; 2. Vibration-resistant structure; 21. Connecting seat; 22. Sliding sleeve; 23. Connecting plate; 24. Fixed plate; 25. Vibration-resistant spring; 26. Connecting column; 27. Limiting column. Detailed Implementation
[0022] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The urea melting pump involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0023] Example 1
[0024] like Figures 1 to 4As shown, this utility model provides a urea melting pump, including: a main structure 1, which includes a fixed base 11, a filter cylinder 15, a locking groove 18, a sealing cover 19, and a locking block 111. The locking groove 18 and the locking block 111 are each provided in two sets. The lower surface of the sealing cover 19 is attached to the upper surface of the filter cylinder 15. A buffer pad 12 is fixedly connected to the upper surface of the fixed base 11, and a drive motor 13 is installed on one side of the upper surface of the buffer pad 12. A pump body 14 is installed at the output end of the drive motor 13. The filter cylinder 15 is connected to the interior of one side of the pump body 14, and the outer surface of one side of the filter cylinder 15... The filter cartridge 15 is fixedly connected to a connection port 16, and a filter element 17 is provided inside the filter cartridge 15. Two sets of engaging grooves 18 are respectively opened inside the upper part of the inner surface of the filter cartridge 15. A sealing gasket 110 is fixedly connected to the middle position of the lower surface of the sealing cover 19. Two sets of engaging blocks 111 are respectively fixedly connected to the two sides of the lower surface of the sealing cover 19. The outer surface of the sealing gasket 110 is in contact with the inner surface of the filter cartridge 15. The two sets of engaging blocks 111 are stepped and are respectively engaged inside the two sets of engaging grooves 18. The buffer pad 12 is made of rubber and can support the drive motor 13 and the pump body 14. The filter cartridge 15 provides some vibration resistance. The connection port 16 can be connected to the urea delivery pipe. After the urea enters the filter cartridge 15, it is filtered through the filter element 17. The sealing gasket 110 is made of rubber. Due to the good sealing properties of rubber, it can effectively fill the gap between the filter cartridge 15 and the sealing cover 19. The sealing gasket 110, when in contact with the inner surface of the filter cartridge 15, significantly improves the internal sealing of the filter cartridge 15, minimizing leakage of urea from the filter cartridge 15 through the sealing cover 19. When the lower surface of the sealing cover 19 is in contact with the upper surface of the filter cartridge 15, the sealing cover 19 is rotated. The two sets of locking blocks 111 can move inside the two sets of locking grooves 18 respectively. When the two sets of locking blocks 111 are locked inside the two sets of locking grooves 18, the position of the sealing cover 19 can be fixed. When the two sets of locking blocks 111 move to the outside of the two sets of locking grooves 18, the sealing cover 19 can be removed from the upper surface of the filter cartridge 15. This design makes it easier for the staff to replace the filter element 17. The filter element 17 can minimize the entry of impurities or solid particles in the urea into the pump body 14, thereby minimizing the risk of wear, blockage or corrosion of the pump body 14.
[0025] Example 2
[0026] like Figures 1 to 6As shown, this embodiment also proposes: an anti-vibration structure 2, which has four sets, and includes a connecting seat 21, a connecting plate 23, and a fixing plate 24. The four sets of connecting seats 21 are respectively fixedly connected to both ends of the two side surfaces of the fixed base 11. Sliding sleeves 22 are fixedly connected to the outer surfaces of both sides of the connecting seat 21. The connecting plate 23 is fixedly connected to the lower surface of the connecting seat 21. An anti-vibration spring 25 is fixedly connected to the middle position of the upper surface of the fixing plate 24, and the upper surface of the anti-vibration spring 25 is attached to the lower surface of the connecting plate 23. Connecting posts 26 are fixedly connected to both sides of the upper surface of the fixing plate 24, and limit posts 27 are fixedly connected to the upper surfaces of both sets of connecting posts 26. The positioning posts 27 are respectively inserted into the two sets of sliding sleeves 22. When the drive motor 13 and the pump body 14 are operating, they will vibrate, which will drive the four sets of connecting seats 21 to move. At this time, the sliding sleeves 22 will slide on the outer surface of the positioning posts 27, thereby restricting the movement of the four sets of connecting seats 21. When the four sets of connecting seats 21 move, they will compress the four sets of anti-vibration springs 25. Since the anti-vibration springs 25 have high elastic potential energy, they can buffer the vibration of the four sets of connecting seats 21 to a certain extent. This design can have a significant anti-vibration effect on the main structure 1 as a whole, thereby maximizing the service life of the equipment and reducing the noise generated during the operation of the equipment to a certain extent.
[0027] Working principle: When the equipment is in use, first connect the urea delivery pipe to the connection port 16, and then provide power to the drive motor 13 and pump body 14 through the external power supply. At this time, urea can be delivered, and the filter element 17 can filter the urea flowing through the filter cartridge 15.
[0028] When the filter element 17 needs to be replaced, first rotate the sealing cover 19 to move the two sets of locking blocks 111 to the outside of the two sets of locking grooves 18. At this time, the sealing cover 19 can be removed from the upper surface of the fixed base 11. Then replace the filter element 17. After the replacement is completed, attach the lower surface of the sealing cover 19 to the upper surface of the filter cartridge 15. Then rotate the sealing cover 19 to move the two sets of locking blocks 111 into the inside of the two sets of locking grooves 18. At this time, the inside of the filter cartridge 15 can be sealed.
[0029] When the drive motor 13 and the pump body 14 vibrate, they will drive the four sets of connecting seats 21 to move. Then, when the four sets of connecting seats 21 move, they will compress the four sets of anti-vibration springs 25. Then, the four sets of anti-vibration springs 25 will buffer the vibration of the four sets of connecting seats 21 through their own elastic potential energy. At this time, it can play an anti-vibration role for the equipment. The above is the entire working principle of this utility model (the drive motor 13 and the pump body 14 used in this application are products that can be directly purchased on the market. Their principles, connection methods and control methods are all existing technologies known to those skilled in the art, so they will not be described in detail here).
[0030] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.
[0031] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.
[0032] In conclusion, the above are merely preferred embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A urea melting pump, characterized in that, include: The main structure (1) includes a fixed base (11), a filter cylinder (15), a locking groove (18), a sealing cover (19) and a locking block (111), and the locking groove (18) and the locking block (111) are provided in two sets, and the lower surface of the sealing cover (19) is attached to the upper surface of the filter cylinder (15). The vibration-resistant structure (2) is provided in four sets, and the vibration-resistant structure (2) includes a connecting seat (21), a connecting plate (23) and a fixing plate (24), and the four sets of connecting seats (21) are respectively fixedly connected to the two ends of the two sides of the fixed base (11).
2. The urea melting pump according to claim 1, characterized in that: A buffer pad (12) is fixedly connected to the upper surface of the fixed base (11), and a drive motor (13) is installed on one side of the upper surface of the buffer pad (12). A pump body (14) is installed at the output end of the drive motor (13), and the filter cylinder (15) is connected to the interior of one side of the pump body (14).
3. The urea melting pump according to claim 1, characterized in that: A connection port (16) is fixedly connected to the outer surface of one side of the filter cylinder (15), and a filter element (17) is provided inside the filter cylinder (15). Two sets of locking grooves (18) are respectively opened inside the upper side of the inner surface of the filter cylinder (15).
4. A urea melting pump according to claim 1, characterized in that: A sealing gasket (110) is fixedly connected to the middle position of the lower surface of the sealing cover (19). Two sets of locking blocks (111) are fixedly connected to both sides of the lower surface of the sealing cover (19). The outer surface of the sealing gasket (110) is in contact with the inner surface of the filter cylinder (15). The two sets of locking blocks (111) are stepped, and the two sets of locking blocks (111) are respectively locked into the interior of the two sets of locking grooves (18).
5. A urea melting pump according to claim 1, characterized in that: Sliding sleeves (22) are fixedly connected to the outer surfaces of both sides of the connecting seat (21). The connecting plate (23) is fixedly connected to the lower surface of the connecting seat (21). An anti-vibration spring (25) is fixedly connected to the middle position of the upper surface of the fixing plate (24), and the upper surface of the anti-vibration spring (25) is attached to the lower surface of the connecting plate (23).
6. A urea melting pump according to claim 5, characterized in that: Both sides of the upper surface of the fixed plate (24) are fixedly connected with connecting columns (26), and the upper surfaces of the two sets of connecting columns (26) are fixedly connected with limiting columns (27), and the two sets of limiting columns (27) are respectively inserted into the interior of the two sets of sliding sleeves (22).