A water pump structure

Abstract

The utility model relates to the technical field of water pump sealing, in particular to a water pump structure, which is optimized to the flow channel and sealing structure inside the pump body through computational fluid dynamics analysis and other means, can reduce friction and leakage, and through adjusting the flow channel and synchronous adjustment of the flow channel and impeller to shift the high efficiency point to the low flow area, the flow channel pump shell is optimized, simultaneously, the design of self -adaptation sealing structure can make it adapt to different working conditions, further promote the adaptability and reliability of system, the pump shell gasket develops from simple plane gasket to the structure of more powerful function, the efficiency is improved by about 3 percentage points under 10L / min, 13L / min 2 working condition points, and the sealing property and service life are improved, including pump shell gasket, pump shell, impeller, wear -resistant gasket, shaft and waterproof chamber, waterproof chamber is arranged in the pump shell, the waterproof chamber is internally provided with the shaft, the shaft outside is fixedly sleeved with the impeller, be provided with wear -resistant gasket between the shaft and the impeller, be provided with pump shell gasket between the impeller and the pump shell.

Description

Technical Field

[0001] This utility model relates to the technical field of water pump sealing, and in particular to a water pump structure. Background Technology

[0002] Most water pump casings use a simple flat or single-stage groove design for the water seal groove, resulting in a large sealing gap and a high liquid leakage rate. Conventional metal gaskets have smooth surfaces and low friction with the water seal groove, making them prone to displacement due to vibration during operation. They lack structures such as fine diagonal lines or serrated edges to enhance positioning and sealing. Furthermore, they lack structural designs such as elastic snaps or guide bevels, requiring precise manual alignment during assembly, resulting in low installation efficiency and a high risk of installation errors. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a water pump structure.

[0004] This utility model discloses a water pump structure, including a pump casing gasket, a pump casing, an impeller, a shaft, and a waterproof chamber. The pump casing contains a waterproof chamber, and a shaft is housed within the waterproof chamber. An impeller is fixedly fitted onto the outer side of the shaft. A wear-resistant gasket is placed between the shaft and the impeller, and a pump casing gasket is placed between the impeller and the pump casing. Through computational fluid dynamics analysis and other methods, the internal flow channel and sealing structure of the pump body are optimized, reducing friction and leakage. By adjusting the flow channel and synchronously adjusting the flow channel and impeller, the high-efficiency point is shifted to the low-flow region, optimizing the flow channel and pump casing. Simultaneously, the adaptive sealing structure design allows it to adapt to different operating conditions, further improving the system's adaptability and reliability. The pump casing gasket has evolved from a simple flat gasket to a more powerful structure. The pump casing gasket is embedded within the pump casing's water sealing groove, resulting in an efficiency increase of approximately 3 percentage points at two operating points: 10 L / min and 13 L / min, while also improving sealing performance and service life.

[0005] Preferably, it also includes a wear-resistant gasket, and a wear-resistant gasket is provided between the shaft and the impeller.

[0006] Preferably, the wear-resistant pad is a ceramic pad.

[0007] Preferably, the pump housing gasket is made of metal.

[0008] The present invention relates to a water pump structure, which includes a wear-resistant gasket, wherein the wear-resistant gasket is provided between the shaft and the impeller.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: by means of computational fluid dynamics analysis, the internal flow channel and sealing structure of the pump body are optimized, which can reduce friction and leakage. By adjusting the flow channel and the synchronous adjustment of the flow channel and impeller, the high efficiency point is shifted to the low flow range, and the flow channel and pump casing are optimized. At the same time, the design of the adaptive sealing structure can adapt to different working conditions, further improving the adaptability and reliability of the system. The pump casing gasket has evolved from a simple flat gasket to a more powerful structure. The pump casing gasket is embedded in the pump casing water sealing groove, which improves the efficiency by about 3 percentage points at two working points of 10L / min and 13L / min, and also improves the sealing performance and service life. Attached Figure Description

[0010] Figure 1 This is a cross-sectional structural diagram of the present invention.

[0011] The following labels are used in the attached diagram: 1. Pump casing gasket; 2. Pump casing; 3. Impeller; 4. Wear-resistant gasket; 5. Shaft; 6. Waterproof chamber. Detailed Implementation

[0012] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete. Example

[0013] This utility model discloses a water pump structure, including a pump casing gasket 1, a pump casing 2, an impeller 3, a wear-resistant gasket 4, a shaft 5, and a waterproof chamber 6. The pump casing 2 is provided with a waterproof chamber 6, and the waterproof chamber 6 is provided with a shaft 5. An impeller 3 is fixedly fitted on the outside of the shaft 5. A wear-resistant gasket 4 is provided between the shaft 5 and the impeller 3, and a pump casing gasket 1 is provided between the impeller 3 and the pump casing 2. The wear-resistant gasket 4 is a ceramic gasket, and the pump casing gasket 1 is made of metal.

[0014] In this embodiment, the internal flow channel and sealing structure of the pump body are optimized through computational fluid dynamics analysis, which can reduce friction and leakage. By adjusting the flow channel and the flow channel and impeller 3 synchronously, the high-efficiency point is shifted to the low-flow area, and the flow channel pump casing 2 is optimized. At the same time, the design of the adaptive sealing structure can adapt to different working conditions, further improving the adaptability and reliability of the system. The pump casing gasket 1 has evolved from a simple flat gasket to a more powerful structure. The pump casing gasket 1 is embedded in the pump casing water sealing groove, which improves the efficiency by about 3 percentage points at the two working points of 10L / min and 13L / min, and also improves the sealing performance and service life.

[0015] Test data sheet:

[0016]

[0017] The main functions achieved by this utility model are:

[0018] 1. Structural Design: Pump Casing Water Seal: Designed as a detachable modular structure, consisting of a main tank made of PPS+GF30 and an embedded sealing ring made of SUS420 stainless steel. The two are connected by a dovetail groove. Metal Gasket: Adopted as a split design, consisting of two semi-circular SUS420 gaskets, with a tenon and mortise structure for the splicing joint.

[0019] 2. Manufacturing process: Main tank preparation: A dovetail groove with a depth of 1.5mm is reserved in the inner wall of the tank through injection molding; Sealing ring processing: SUS420 sheet is rolled into a ring, formed by laser welding, and then precision turned, with the outer diameter tolerance controlled within ±0.02mm; Metal gasket processing: SUS420 sheet is cut into a semi-circular shape using wire cutting technology, and the tenon and mortise structure fit gap is controlled within 0.05mm.

[0020] 3. Assembly steps: First, embed the sealing ring into the dovetail groove of the main body and fix it using ultrasonic welding;

[0021] After splicing the two semi-circular metal gaskets together, they are fitted into the bushing and then embedded into the sealing ring as a whole. The gaskets are then tightened from the outside with bolts, and the tightening torque is controlled at 3-3.5 N·m.

[0022] 4. Application results: Compared with the integral structure, the assembly time is shortened by 40%; after 50 hours of operation under the condition of vibration frequency of 10-200Hz and amplitude of 0.3mm, there is no loosening or leakage.

[0023] 5. The stepped groove and thin-walled groove design of the pump casing sealing groove significantly reduces the sealing gap compared to simple flat or single-stage grooves, lowering the liquid leakage rate by more than 70%. The fine diagonal lines and serrated edges on the surface of the metal gasket significantly increase the friction between it and the sealing groove, effectively preventing gasket displacement during pump vibration and ensuring stable sealing performance. Optimized assembly structures such as elastic clips and guide bevels reduce metal gasket installation time by 60% and lower the installation error rate to below 1%, improving assembly efficiency and accuracy.

[0024] This utility model discloses a water pump structure in which a pump casing gasket 1 is embedded in the sealing shell of the pump casing 2, reducing the sealing groove gap by 0.3 and improving volumetric efficiency. There may be friction between the impeller 3 and the pump casing 2, and friction between plastics. The friction coefficient is high, which may lead to stalling or the generation of plastic particles during friction. Therefore, a stainless steel gasket is used to mitigate the above two potential risks. The water pump casing is equipped with a gasket insert made of (SUS304) stainless steel material to enhance corrosion resistance, increase the water pump head, and reduce energy consumption.

[0025] 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 improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A water pump structure, comprising a pump casing gasket (1), a pump casing (2), an impeller (3), a shaft (5), and a waterproof chamber (6), characterized in that, The pump casing (2) has a waterproof chamber (6) inside, and a shaft (5) is installed inside the waterproof chamber (6). An impeller (3) is fixedly fitted on the outside of the shaft (5). A pump casing gasket (1) is installed between the impeller (3) and the pump casing (2).

2. The water pump structure as described in claim 1, characterized in that, It also includes a wear-resistant gasket (4), and a wear-resistant gasket (4) is provided between the shaft (5) and the impeller (3).

3. The water pump structure as described in claim 2, characterized in that, The wear-resistant pad (4) is a ceramic pad.

4. The water pump structure as described in claim 1, characterized in that, The pump housing gasket (1) is made of metal.

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