A submersible motor for wells with enhanced sand control performance

Abstract

This utility model relates to the field of water pump equipment technology, specifically to a submersible motor for wells with enhanced sand-proof performance. It includes a cover plate, a motor mount, and a sand-proof device. The sand-proof device includes a sand-proof seat, a sand-throwing sleeve, wear-resistant components, and auxiliary components. The sand-proof seat is positioned between the cover plate and the motor mount. The sand-throwing sleeve is fixedly connected to the sand-proof seat. The wear-resistant components are respectively positioned on the sand-proof seat and the motor mount. By setting the sand-proof seat between the cover plate and the motor mount, and setting the sand-throwing sleeve and wear-resistant components on the sand-proof seat, the sand-proof seat has better wear resistance. When the wear resistance of the sand-proof seat is enhanced, the gap between the sand-throwing sleeve and the sand-proof seat can be maintained for a long time, preventing sand and other impurities from entering the motor mount through the gap between the sand-proof seat and the sand-throwing sleeve. Therefore, the service life of the sand-proof seat is improved, thereby improving the sand-proof performance and service life between the motor mount and the cover plate, and preventing water ingress and damage to the motor.

Description

Technical Field

[0001] This utility model relates to the field of water pump equipment technology, and in particular to a submersible motor for wells with enhanced sand control performance. Background Technology

[0002] Currently, the lead wires of submersible motors are led out from the motor base. The existing sand cover design causes the lead wires to bend, which can easily damage the sheath and wires, thus affecting the service life of the motor.

[0003] Existing technology CN212462951U discloses a novel fully sealed structure for a submersible motor used in wells. The sealed structure's cover plate is installed on the motor mount of the pump. The cover plate has a wire passage hole and several fixing holes, covering the entire upper surface of the motor mount, with a shaft hole in the center. The upper surface of the motor mount is not exposed, and the motor shaft passes through the shaft hole. A sand-proof sleeve / rubber sleeve is located above the cover plate where the shaft hole is located and fits into the cover plate. This double-layer protection provides good sealing, prevents sand accumulation, and also results in a simpler and more aesthetically pleasing appearance. The cover plate completely covers the upper surface of the motor mount, complementing the sand-proof sleeve / rubber sleeve to form double protection. This provides good sand prevention, reduces sand accumulation, protects the mount surface, and extends motor life. The close fit with the motor mount surface ensures a robust and stable structure, protects the motor leads and sheaths, and enhances the overall aesthetics.

[0004] However, when using the above method, in harsh working conditions (when the mud and sand content is relatively high), mud and sand can easily enter between the motor seat and the cover plate, causing wear. Under long-term operation, this can lead to the failure of the mechanical seal, resulting in water ingress and damage to the motor. Utility Model Content

[0005] The purpose of this invention is to provide a submersible motor for wells with enhanced sand-proof performance, which can improve the sand-proof performance and service life of the motor seat and cover plate under harsh working conditions (when the mud and sand content is relatively high), and prevent the motor from being damaged by water ingress.

[0006] To achieve the above objectives, this utility model provides a submersible motor for wells with increased sand control performance, including a cover plate and a motor upper seat. The cover plate is installed on the motor upper seat and covers the entire upper surface of the motor upper seat. It also includes a sand control device.

[0007] The sand-proof device includes a sand-proof seat, a sand-throwing sleeve, a wear-resistant component, and an auxiliary component. The sand-proof seat is disposed between the cover plate and the upper motor seat. The sand-throwing sleeve is fixedly connected to the sand-proof seat and located on one side of the sand-proof seat. The wear-resistant component is disposed on the sand-proof seat and the upper motor seat respectively. The auxiliary component is disposed on the cover plate and the sand-proof seat respectively.

[0008] The wear-resistant component includes a wear-resistant washer and a strength member. The wear-resistant washer is fixedly connected to the sandproof seat and to the upper part of the motor. The strength member is disposed on the sandproof seat.

[0009] The strength member includes a lower cavity and an upper cavity, which are located within the sand-proof seat. The diameter of the lower cavity is larger than the diameter of the upper cavity.

[0010] The sand-proof seat and the sand-throwing sleeve are equipped with filter screens, and the filter screens are disposed between the sand-proof seat and the sand-throwing sleeve.

[0011] The auxiliary components include a sealing gasket and a protective ring. The sealing gasket is fixedly connected to the cover plate and to the sandproof seat. The protective ring is disposed on the sealing gasket.

[0012] This utility model discloses a submersible well motor with enhanced sand-proof performance, comprising a cover plate, a motor mount, and a sand-proof device. The sand-proof device includes a sand-proof seat, a sand-throwing sleeve, wear-resistant components, and auxiliary components. In harsh working conditions (with relatively high sediment content), the submersible well motor utilizes the sand-proof seat positioned between the cover plate and the motor mount. The sand-throwing sleeve and wear-resistant components are mounted on the sand-proof seat, resulting in improved wear resistance. This enhanced wear resistance ensures a longer-term gap between the sand-throwing sleeve and the sand-proof seat, preventing sand and other impurities from entering the motor mount through this gap. This improves the service life of the sand-proof seat, thereby enhancing the sand-proof performance and service life of the motor mount and the cover plate, and preventing water ingress and damage to the motor. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0014] Figure 1 This is a schematic diagram of the overall structure of the well submersible motor with enhanced sand-proof performance according to the first embodiment of this utility model.

[0015] Figure 2 This is a utility model Figure 1 Enlarged view of point A.

[0016] In the diagram: 101-Cover plate, 102-Motor upper seat, 103-Sandproof seat, 104-Sand-throwing sleeve, 105-Wear-resistant washer, 106-Lower cavity, 107-Upper cavity, 108-Filter screen, 109-Sealing gasket, 110-Protective ring. Detailed Implementation

[0017] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0018] The first embodiment of this application is as follows:

[0019] Please see Figure 1 and Figure 2 ,in Figure 1 This is a schematic diagram of the overall structure of a submersible motor for wells with enhanced sand control performance. Figure 2 yes Figure 1 Enlarged view at point A. This utility model provides a submersible motor for wells with enhanced sand control performance: it includes a cover plate 101, a motor upper seat 102, and a sand control device. The sand control device includes a sand control seat 103, a sand-throwing sleeve 104, a wear-resistant component, and an auxiliary component. The wear-resistant component includes a wear-resistant washer 105 and a strength member. The strength member includes a lower cavity 106 and an upper cavity 107. Filter screens 108 are provided on the sand control seat 103 and the sand-throwing sleeve 104. The auxiliary component includes a sealing gasket 109 and a protective ring 110. The aforementioned solution addresses the issue of mud and sand easily entering between the motor mount 102 and the cover plate 101 in harsh operating conditions (relatively high mud and sand content), leading to wear and, under prolonged operation, mechanical seal failure, resulting in water ingress and motor damage. It is understood that the aforementioned solution can be used for submersible well motors in harsh operating conditions (relatively high mud and sand content), improving sand resistance and service life between the motor mount 102 and the cover plate 101, preventing water ingress and motor damage, and also reducing noise generated during motor operation, making it more environmentally friendly.

[0020] In this specific embodiment, the cover plate 101 is installed on the motor upper seat 102, and the cover plate 101 covers the entire upper surface of the motor upper seat 102. The upper surface of the motor upper seat 102 is not exposed. The cover plate 101 and the motor upper seat 102 cooperate with each other to avoid sand accumulation and make the appearance simpler and more beautiful.

[0021] The sand-proof seat 103 is disposed between the cover plate 101 and the motor upper seat 102. The sand-throwing sleeve 104 is fixedly connected to the sand-proof seat 103 and located on one side of the sand-proof seat 103. The wear-resistant components are respectively disposed on the sand-proof seat 103 and the motor upper seat 102. The auxiliary components are respectively disposed on the cover plate 101 and the sand-proof seat 103. The sand-proof seat 103 is disposed between the cover plate 101 and the motor upper seat 102. The sand-proof seat 103 is provided with the... The sand-throwing sleeve 104 and the sand-proof seat 103 have good wear resistance. When the wear resistance of the sand-proof seat 103 is enhanced, the gap between the sand-throwing sleeve 104 and the sand-proof seat 103 can be guaranteed for a long time, preventing sand and other impurities from entering the motor upper seat 102 through the gap between the sand-proof seat 103 and the sand-throwing sleeve 104. Therefore, the service life of the sand-proof seat 103 is improved, thereby improving the service life of the motor upper seat 102 and enhancing sand resistance. The wear-resistant component is provided between the motor upper base 102 and the sand-proof seat 103, which can improve the service life of the sand-proof seat 103 and thus improve the sand-proof performance. The auxiliary component is provided at the top of the cover plate 101, which can further improve the sand-proof performance of the motor upper base 102. In harsh working conditions (when the mud and sand content is relatively high), the well submersible motor can improve sand-proof performance by providing the sand-proof seat 103 between the cover plate 101 and the motor upper base 102, and by providing the sand-throwing sleeve 104 and the wear-resistant component on the sand-proof seat 103. The sandproof seat 103 has good wear resistance. When the wear resistance of the sandproof seat 103 is enhanced, the gap between the sand-throwing sleeve 104 and the sandproof seat 103 can be guaranteed for a long time, preventing sand and other impurities from entering the motor upper seat 102 through the gap between the sandproof seat 103 and the sand-throwing sleeve 104. Therefore, the service life of the sandproof seat 103 is improved, thereby improving the sandproofness and service life between the motor upper seat 102 and the cover plate 101, and avoiding water ingress and damage to the motor.

[0022] Secondly, the wear-resistant washer 105 is fixedly connected to the sand-proof seat 103 and to the motor upper seat 102; the lower cavity 106 and the upper cavity 107 are located inside the sand-proof seat 103, the diameter of the lower cavity 106 is larger than the diameter of the upper cavity 107, and the wear-resistant washer 105 is provided between the sand-proof seat 103 and the motor upper seat 102. The wear-resistant washer 105 is usually made of alumina ceramic material and has strong wear resistance. The setting of the wear-resistant washer 105 can resist the friction generated by the high-speed operation of the sand-throwing sleeve 104 and improve the service life of the sand-proof seat 103. The lower cavity 106 and the upper cavity 107 are provided in the inner cavity of the sand-proof seat 103. The upper cavity 107 and the lower cavity 106 are used in conjunction with the sand-proof seat 103 to play an interference fit role.

[0023] Meanwhile, the filter screen 108 is disposed between the sand-proof seat 103 and the sand-throwing sleeve 104. The filter screen 108 is disposed between the sand-proof seat 103 and the sand-throwing sleeve 104. The filter screen 108 can reduce the sand impurities entering the sand-proof seat 103 and further improve the service life of the sand-proof seat 103.

[0024] In addition, the sealing gasket 109 is fixedly connected to the cover plate 101 and the sandproof seat 103; the protective ring 110 is disposed on the sealing gasket 109, and the sealing gasket 109 is disposed on the top of the cover plate 101. One end of the sealing gasket 109 abuts against the sandproof seat 103. The setting of the sealing gasket 109 further improves the airtightness between the cover plate 101 and the sandproof seat 103, thereby playing a sandproof role, improving the service life of the sandproof seat 103, and thus preventing water from entering the motor and causing damage. The upper surface of the sealing gasket 109 is provided with the protective ring 110. The protective ring 110 is made of non-slip and wear-resistant material and has good toughness. The protective ring 110 protects the sealing gasket 109 and can reduce the noise generated during motor use, making it more environmentally friendly.

[0025] When using a submersible motor for wells with enhanced sand-proof performance according to this embodiment, the submersible motor can withstand harsh working conditions (relatively high mud and sand content) by setting a sand-proof seat 103 between the cover plate 101 and the motor upper seat 102, and setting a sand-throwing sleeve 104 and a wear-resistant component on the sand-proof seat 103. This makes the sand-proof seat 103 have better wear resistance. When the wear resistance of the sand-proof seat 103 is enhanced, the gap between the sand-throwing sleeve 104 and the sand-proof seat 103 can be guaranteed for a long time, preventing sand and other impurities from entering the motor upper seat 102 through the gap between the sand-proof seat 103 and the sand-throwing sleeve 104. Therefore, the service life of the sand-proof seat 103 is improved, thereby improving the sand-proof performance and service life between the motor upper seat 102 and the cover plate 101, and avoiding water ingress and damage to the motor.

[0026] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A submersible motor for wells with enhanced sand control performance, comprising a cover plate and a motor mount, wherein the cover plate is mounted on the motor mount and covers the entire upper surface of the motor mount, characterized in that: It also includes sand control devices; The sand-proof device includes a sand-proof seat, a sand-throwing sleeve, a wear-resistant component, and an auxiliary component. The sand-proof seat is disposed between the cover plate and the upper motor seat. The sand-throwing sleeve is fixedly connected to the sand-proof seat and located on one side of the sand-proof seat. The wear-resistant component is disposed on the sand-proof seat and the upper motor seat respectively. The auxiliary component is disposed on the cover plate and the sand-proof seat respectively.

2. The submersible motor for wells with enhanced sand control performance as described in claim 1, characterized in that: The wear-resistant component includes a wear-resistant washer and a strength member. The wear-resistant washer is fixedly connected to the sandproof seat and to the motor upper seat. The strength member is disposed on the sandproof seat.

3. The submersible motor for wells with enhanced sand control performance as described in claim 2, characterized in that: The strength member includes a lower cavity and an upper cavity, which are located within the sand-proof seat. The diameter of the lower cavity is larger than the diameter of the upper cavity.

4. The submersible motor for wells with enhanced sand control performance as described in claim 1, characterized in that: The sand-proof seat and the sand-throwing sleeve are equipped with filter screens, and the filter screens are disposed between the sand-proof seat and the sand-throwing sleeve.

5. The submersible motor for wells with enhanced sand control performance as described in claim 1, characterized in that: The auxiliary components include a sealing gasket and a protective ring. The sealing gasket is fixedly connected to the cover plate and to the sandproof seat. The protective ring is disposed on the sealing gasket.

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