Corrosion-resistant magnetic drive gear pump head
By employing corrosion-resistant materials and a cooling system to design the magnetically driven gear pump head, the problem of corrosion damage in highly corrosive liquids in traditional gear pumps has been solved, achieving both corrosion resistance and efficient heat dissipation. This makes it suitable for industries such as chemical, pharmaceutical, and food processing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-20
- Publication Date
- 2026-03-31
AI Technical Summary
Traditional stainless steel gear pumps are prone to corrosion and damage when handling highly corrosive liquids, which affects the normal operation of the pump, increases maintenance costs, and may even lead to production interruptions.
The pump head of the magnetically driven gear pump is formed by using a housing made of polytetrafluoroethylene (PTFE), polyvinylidene fluoride (PVDF) or ceramic materials, and gears made of stainless steel or engineering plastics, combined with the design of a cooling pump, cooling pipes and a cooling fan.
It effectively resists the erosion of corrosive media, extends its service life, and ensures stable operation of the pump head in high-temperature environments through efficient heat dissipation, making it suitable for industries such as chemical, pharmaceutical, and food processing.
Smart Images

Figure CN224064513U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of gear pumps, and in particular to a corrosion-resistant magnetically driven gear pump head. Background Technology
[0002] Stainless steel has always been the preferred material in the traditional design and application of gear pumps due to its good mechanical properties and relatively high corrosion resistance. However, with the increasing demand for efficient, durable, and environmentally friendly equipment in the industrial sector, traditional stainless steel gear pumps are proving inadequate when handling highly corrosive liquids, especially strong acids and alkalis with pH values of 1-4 and 8-13. In these cases, the limitations of stainless steel become more apparent. These highly corrosive liquids can cause severe corrosion to stainless steel parts in a very short time, leading to damage to internal pump components, affecting the normal operation of the pump, increasing maintenance costs, and even potentially causing production interruptions. To address these issues, we provide a corrosion-resistant magnetically driven gear pump head. Utility Model Content
[0003] The purpose of this application is to provide a corrosion-resistant magnetically driven gear pump head to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution:
[0005] A corrosion-resistant magnetically driven gear pump head includes a housing with an internal cavity. Gears A and B are rotatably mounted inside the cavity. A fixing slot is provided inside the housing, and a drive motor is installed inside the fixing slot. The output end of the drive motor passes through the housing and connects to the outer surface of gear A. An installation slot is provided inside the housing, and a cooling pipe is installed inside the installation slot. An installation box is installed on the outer surface of the housing. A partition and a cooling pipe are installed inside the installation box. A cooling pump is installed inside the installation box. The output end of the cooling pump and the end of the cooling pipe away from the partition both pass through the housing and connect to the outer surface of the cooling pipe. The input end of the cooling pump passes through the partition and connects to the end of the cooling pipe near the partition.
[0006] In a further embodiment, the output end of the housing is connected to a connecting pipe A, and the input end of the housing is connected to a connecting pipe B.
[0007] In a further embodiment, a cover is installed on the outer surface of the mounting box, and a cooling fan is installed on the outer surface of the cover.
[0008] In a further embodiment, the housing may be made of materials such as polytetrafluoroethylene (PTFE), polyvinylidene fluoride (PVDF), or ceramics.
[0009] In a further embodiment, gear A and gear B may be made of stainless steel or engineering plastics.
[0010] Compared with the prior art, the beneficial effects of this utility model are:
[0011] The housing, gear A, and gear B of this application are all made of corrosion-resistant materials, which can effectively resist the erosion of corrosive media and extend the service life of the pump. Through the coordinated use of the cooling pump, cooling pipe, cooling pipe and cooling fan, the pump head is ensured to operate stably in high-temperature environments. This gives the device excellent corrosion resistance and efficient heat dissipation performance, making it suitable for conveying corrosive media in chemical, pharmaceutical, food and other industries, and it has broad application prospects. Attached Figure Description
[0012] Figure 1 This is a three-dimensional structural diagram of a corrosion-resistant magnetically driven gear pump head.
[0013] Figure 2 This is a schematic diagram of the internal structure of the mounting box in the pump head of a corrosion-resistant magnetically driven gear pump.
[0014] Figure 3 This is a side sectional view of a corrosion-resistant magnetically driven gear pump head.
[0015] Figure 4 This is a rear sectional view of a corrosion-resistant magnetically driven gear pump head.
[0016] In the diagram: 1. Shell; 2. Connecting pipe A; 3. Connecting pipe B; 4. Mounting box; 5. Box cover; 6. Cooling fan; 7. Partition; 8. Cooling pump; 9. Cooling pipe; 10. Mounting slot; 11. Cooling pipe; 12. Cavity; 13. Gear A; 14. Gear B; 15. Fixing slot; 16. Drive motor. Detailed Implementation
[0017] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0019] Please see Figure 1-4 In this utility model, a corrosion-resistant magnetically driven gear pump head includes a housing 1. A cavity 12 is formed inside the housing 1. Gears A13 and B14 are rotatably mounted inside the cavity 12. A fixing groove 15 is formed inside the housing 1. A drive motor 16 is installed inside the fixing groove 15. The output end of the drive motor 16 passes through the housing 1 and connects to the outer surface of gear A13. The housing 1 can be made of materials such as polytetrafluoroethylene (PTFE), polyvinylidene fluoride (PVDF), or ceramics. Gears A13 and B14 can be made of stainless steel or engineering plastics. Both are made of corrosion-resistant materials, effectively resisting the erosion of corrosive media and extending the service life of the pump.
[0020] The housing 1 has an installation groove 10 inside, and a cooling pipe 11 is installed inside the installation groove 10. An installation box 4 is installed on the outer surface of the housing 1. A partition 7 and a cooling pipe 9 are installed inside the installation box 4. A cooling pump 8 is installed inside the installation box 4. The output end of the cooling pump 8 and the end of the cooling pipe 9 away from the partition 7 both pass through the housing 1 and are connected to the outer surface of the cooling pipe 11. The cooling pump 8 drives the cooling pipe 9 to drive the coolant inside the cooling pipe 11 to flow rapidly, so that the heat generated during the flow is quickly carried away.
[0021] The input end of the cooling pump 8 passes through the partition 7 and is connected to the end of the cooling pipe 9 near the partition 7. The output end of the housing 1 is connected to the connecting pipe A2, and the input end of the housing 1 is connected to the connecting pipe B3. The outer surface of the mounting box 4 is equipped with a box cover 5, and the outer surface of the box cover 5 is equipped with a cooling fan 6. The cooling fan 6 cools the cooling pipe 9 and the internal coolant, thereby lowering the temperature of the coolant and facilitating subsequent continuous cooling.
[0022] The working principle of this application is as follows: During use, the housing 1, gear A13 and gear B14 are all made of corrosion-resistant materials, which can effectively resist the erosion of corrosive media and extend the service life of the pump. When cooling is required, the cooling pump 8 is started to drive the cooling pipe 9 to drive the coolant inside the cooling pipe 11 to flow rapidly, so that the heat generated during the flow is quickly carried away. Then, the cooling fan 6 is started to cool the cooling pipe 9 and the coolant inside, so that the temperature of the coolant drops, which helps to continuously cool down in the future.
[0023] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A corrosion resistant magnetic drive gear pump head, characterized by: The utility model provides a kind of cooling device, including shell (1), the inside of the shell (1) is opened with cavity (12), the inside of the cavity (12) is rotatably installed gear A (13) and gear B (14), the inside of the shell (1) is opened with fixed slot (15), the fixed slot (15) is installed with drive motor (16), the output of the drive motor (16) is connected with the outer surface of gear A (13) after being penetrated through shell (1), the inside of the shell (1) is opened with installation slot (10), the inside of the installation slot (10) is installed with cooling pipeline (11), the outer surface of the shell (1) is installed with installation box (4), the inside of the installation box (4) is installed with baffle (7) and cooling pipeline (9), the inside of the installation box (4) is installed with cooling pump (8), the output of the cooling pump (8) and cooling pipeline (9) are penetrated through shell (1) after being away from baffle (7) one end with the outer surface of cooling pipeline (11) communication, the input of the cooling pump (8) is penetrated through baffle (7) with cooling pipeline (9) close to baffle (7) one end communication.
2. The corrosion resistant magnetic drive gear pump head of claim 1, wherein: The output of the shell (1) is communicated with connecting pipeline A (2), and the input of the shell (1) is communicated with connecting pipeline B (3).
3. The corrosion resistant magnetic drive gear pump head of claim 1, wherein: The outer surface of the installation box (4) is installed with box cover (5), and the outer surface of the box cover (5) is installed with cooling fan (6).
4. The corrosion resistant magnetic drive gear pump head of claim 1, wherein: The shell (1) can be made of polytetrafluoroethylene, polyvinylidene fluoride or ceramic material.
5. The corrosion resistant magnetic drive gear pump head of claim 1, wherein: The gear A (13) and gear B (14) can be made of stainless steel or engineering plastic.