Submersible electric pump well shaft type mounting device for electromechanical pumping station

Abstract

The utility model relates to submersible electric pump installation field, concretely to a kind of electromechanical irrigation pump station submersible electric pump well shaft type mounting device, including well shaft, submersible electric pump, sealing assembly, first elastic element and elastic clamping cone body;The bottom of well shaft inside is provided with elastic clamping cone body, and the middle part of elastic clamping cone body is V-shaped through-hole of wide top narrow bottom;The upper end of submersible electric pump is provided with flange, and submersible electric pump passes through V-shaped through-hole, and is fixed by flange and elastic clamping cone body clamping;Sealing assembly is arranged between flange and elastic clamping cone body;Several first elastic elements are arranged between well shaft inner wall and elastic clamping cone body.The utility model mounting structure does not need bolt to connect, and installation process is quick and convenient, when submersible electric pump displacement occurs, first elastic element is pressed to elastic clamping cone body inside, realize radial sealing compensation, flange bottom is provided with telescopic sealing ring, realize axial telescopic compensation, guarantee the overall sealing property of device.

Description

Technical Field

[0001] This utility model relates to the field of submersible pump installation, specifically a well-type installation device for a submersible pump used in electromechanical irrigation and drainage pumping stations. Background Technology

[0002] Submersible pumps are important equipment for deep well water extraction. When in use, the entire unit is submerged in water to extract groundwater to the surface. They can be used for domestic water supply, mine rescue, industrial cooling, farmland irrigation, seawater lifting, ship ballast adjustment, and fountain landscaping, among other applications.

[0003] Chinese utility model patent with authorization announcement number CN209294075U and authorization announcement date of August 23, 2019 discloses an installation structure for a submersible pump and a well casing, belonging to the field of submersible pumps. The key technical points of the solution are: it includes a well casing and a submersible pump, the submersible pump is located in the inner cavity of the well casing, and a water inlet is provided at the bottom of the well casing. The submersible pump is fixed to the water inlet of the well casing by a hoisting structure. The water inlet is detachably connected to a flared mouth at a position away from the submersible pump by several fixing bolts. The flared mouth is connected to the water inlet of the submersible pump, which can increase the diameter of the submersible pump flared mouth, reduce vortices and bubbles, and at the same time, does not increase the diameter of the well casing, thus saving costs.

[0004] However, the existing submersible pump shaft installation process is cumbersome, and during long-term use, the submersible pump may shift, causing changes in the pressure of the sealing ring of the installation structure and reducing the sealing effect.

[0005] Therefore, there is an urgent need to provide a well-type installation device for submersible electric pumps used in electromechanical irrigation and drainage pumping stations. Utility Model Content

[0006] To overcome the problems existing in the prior art, the purpose of this utility model is to provide a well-type installation device for submersible electric pumps used in electromechanical irrigation and drainage pumping stations that is quick and convenient to install and has a better sealing effect.

[0007] To achieve the above objectives, this utility model provides a well-type installation device for a submersible electric pump for an electromechanical irrigation and drainage pumping station, including a well, a submersible electric pump, a sealing assembly, a first elastic element, and an elastic snap-fit ​​cone.

[0008] The bottom of the inner side of the well shaft is provided with the elastic snap-fit ​​cone, and the middle part of the elastic snap-fit ​​cone is a V-shaped through hole that is wider at the top and narrower at the bottom; the upper end of the submersible pump is provided with a flange, the outer edge of the flange is adapted to the shape of the V-shaped through hole, the submersible pump passes through the V-shaped through hole and is snapped and fixed to the elastic snap-fit ​​cone by the flange; a sealing assembly is provided between the flange and the elastic snap-fit ​​cone;

[0009] Several first elastic elements are provided between the inner wall of the well shaft and the elastic snap-fit ​​cone.

[0010] This invention utilizes the self-weight of the submersible pump, fixing it to the elastic snap-fit ​​cone via a flange, thus completing the installation without the need for bolts. The installation and disassembly process is quick and convenient. Furthermore, several first elastic elements are installed between the inner wall of the wellbore and the elastic snap-fit ​​cone for expansion and contraction compensation. When the submersible pump experiences slight displacement, the first elastic elements press inward against the elastic snap-fit ​​cone, ensuring a tight connection between the elastic snap-fit ​​cone and the flange, achieving radial sealing compensation, and thus guaranteeing the overall sealing performance of the device.

[0011] The present invention is further configured such that the first elastic element is evenly arranged along the circumferential direction of the inner wall of the well.

[0012] The present invention is further configured such that: the sealing assembly includes a telescopic sealing ring and an auxiliary sealing ring; both the telescopic sealing ring and the auxiliary sealing ring are disposed on the flange.

[0013] The present invention is further configured such that: a first sealing groove is provided at the bottom of the flange, and the telescopic sealing ring is disposed in the first sealing groove; the telescopic sealing ring includes a first sealing ring and a plurality of second elastic elements, one end of the second elastic element is connected to the first sealing groove, and the other end is connected to the first sealing ring.

[0014] The present invention is further configured such that the second elastic element is evenly arranged along the circumferential direction of the flange.

[0015] The present invention is further configured such that the shape of the protruding end of the first sealing ring matches the shape of the elastic snap-fit ​​cone.

[0016] When the submersible pump is displaced, the expansion and contraction of the first sealing ring is controlled by the second elastic element, which presses the first sealing ring tightly against the elastic snap cone, thereby compensating for the axial seal and ensuring the overall sealing performance of the device.

[0017] The present invention is further configured such that: a second sealing groove is provided at the bottom of the flange, and the auxiliary sealing ring is disposed in the second sealing groove.

[0018] The present invention is further provided with a conical guide plate on the inner wall of the well shaft, and a plurality of drainage holes are provided on the conical guide plate.

[0019] The conical guide plate restricts the lowering path of the submersible pump, increasing the installation speed. At the same time, drainage holes are provided on the conical guide plate to reduce obstruction to water flow.

[0020] The present invention is further configured such that: the well-type installation device for the submersible electric pump for the electromechanical irrigation and drainage pumping station also includes a well cover and a steel wire rope, one end of the steel wire rope is connected to the submersible electric pump, and the other end passes through the well cover and is fixed; the steel wire rope is used to lower and install the submersible electric pump.

[0021] The present invention is further configured such that: a cable is connected to the submersible pump, a cable through hole is provided on the well cover, and the cable passes through the cable through hole to connect to an external power source.

[0022] In summary, the beneficial effects of the above-mentioned technical solution of this utility model are as follows:

[0023] (1) This utility model does not require bolt connection, and the installation and disassembly process is quick and convenient. A first elastic element is provided between the inner wall of the well and the elastic snap-fit ​​cone for expansion and contraction compensation. When the submersible pump is displaced, the first elastic element presses against the elastic snap-fit ​​cone inward to ensure a tight connection between the elastic snap-fit ​​cone and the flange, thereby achieving radial sealing compensation. A telescopic sealing ring is provided at the bottom of the flange to achieve axial expansion and contraction compensation, thereby ensuring the overall sealing of the device.

[0024] (2) The inner wall of the well shaft in this utility model is provided with a conical guide plate, and a number of drainage holes are provided on the conical guide plate. The guide plate restricts the lowering path of the submersible pump and improves the installation speed. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the internal structure of a well-type installation device for a submersible electric pump used in an electromechanical irrigation and drainage pumping station.

[0027] Figure 2 for Figure 1 Enlarged view of a portion of point A in the middle.

[0028] The attached diagram lists the components represented by each number as follows:

[0029] 1. Well shaft; 2. Submersible pump; 21. Cable; 22. Flange; 23. Second elastic element; 24. First sealing ring; 25. Auxiliary sealing ring.

[0030] 3. Manhole cover; 4. Conical guide plate; 5. Steel wire rope; 6. Elastic snap-fit ​​cone; 7. First elastic element. Detailed Implementation

[0031] To enable those skilled in the art to better understand the technical solution of this utility model, the technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Based on the embodiments of this utility model, other similar embodiments obtained by those skilled in the art without creative effort should all fall within the protection scope of this utility model. Furthermore, directional terms mentioned in the following embodiments, such as "up," "down," "left," and "right," are only for reference to the directions in the accompanying drawings; therefore, the directional terms used are for illustrative purposes and not for limiting the scope of this utility model.

[0032] The present invention will be further described below with reference to the accompanying drawings and preferred embodiments.

[0033] Example:

[0034] like Figure 1 , Figure 2 As shown, this is a preferred embodiment of the present invention, a well-type installation device for a submersible electric pump for an electromechanical irrigation and drainage pumping station, including a well 1, a submersible electric pump 2, a sealing assembly, a first elastic element 7 and an elastic snap-fit ​​cone 6;

[0035] The bottom of the inner side of the well shaft 1 is provided with the elastic snap-fit ​​cone 6, which is annular with a V-shaped through hole in the middle that is wider at the top and narrower at the bottom. The upper end of the submersible pump 2 is provided with a flange 22, the outer edge of which is adapted to the V-shaped through hole. The submersible pump 2 passes through the V-shaped through hole and is snapped and fixed to the elastic snap-fit ​​cone 6 by the flange 22. A sealing assembly is provided between the flange 22 and the elastic snap-fit ​​cone 6. The sealing assembly includes a telescopic sealing ring and an auxiliary sealing ring 25. Both the telescopic sealing ring and the auxiliary sealing ring 25 are provided on the flange 22.

[0036] A plurality of first elastic elements 7 are provided between the inner wall of the well shaft 1 and the elastic snap-fit ​​cone 6, and the first elastic elements 7 are evenly arranged along the circumferential direction of the inner wall of the well shaft 1.

[0037] This invention utilizes the self-weight of the submersible pump 2, and fixes it to the elastic snap-fit ​​cone 6 via the flange 22, thus completing the installation without the need for bolts. The installation and disassembly process is quick and convenient. Furthermore, several first elastic elements 7 are provided between the inner wall of the well shaft 1 and the elastic snap-fit ​​cone 6 for expansion and contraction compensation. When the submersible pump 2 undergoes slight displacement, the first elastic elements 7 press inward against the elastic snap-fit ​​cone 6, ensuring a tight connection between the elastic snap-fit ​​cone 6 and the flange 22, achieving radial sealing compensation. An expansion sealing ring is provided at the bottom of the flange 22 to achieve axial expansion and contraction compensation, thereby ensuring the overall sealing performance of the device.

[0038] The flange 22 has a first sealing groove at its bottom, and the telescopic sealing ring is disposed in the first sealing groove. The telescopic sealing ring includes a first sealing ring 24 and a plurality of second elastic elements 23. One end of the second elastic element 23 is connected to the first sealing groove, and the other end is connected to the first sealing ring 24. The second elastic elements 23 are evenly arranged along the circumference of the flange 22.

[0039] The shape of the protruding end of the first sealing ring 24 matches the shape of the elastic snap-fit ​​cone 6, such as... Figure 2 As shown, the outer edge of the first sealing ring 24 has a tapered structure that is wider at the top and narrower at the bottom. When the submersible pump 2 is installed in the well, the tapered surface of the outer edge of the first sealing ring 24 is tightly fitted with the tapered surface of the V-shaped through hole of the elastic snap-fit ​​cone 6.

[0040] When the submersible pump 2 is displaced, the extension and retraction of the first sealing ring 24 is controlled by the second elastic element 23, which presses the first sealing ring 24 tightly against the elastic snap cone 6 to achieve axial sealing compensation, thereby ensuring the overall sealing performance of the device.

[0041] In this embodiment, both the first elastic element 7 and the second elastic element 23 are springs.

[0042] The bottom of the flange 22 is also provided with a second sealing groove, and the auxiliary sealing ring 25 is disposed in the second sealing groove.

[0043] The inner wall of the well shaft 1 is also provided with a conical guide plate 4, which has several drainage holes. The conical guide plate 4 restricts the lowering path of the submersible pump 2, thereby improving the installation speed.

[0044] The submersible pump well-type installation device for the electromechanical irrigation and drainage pumping station also includes a well cover 3 and a steel wire rope 5. One end of the steel wire rope 5 is connected to the submersible pump 2, and the other end passes through the well cover 3 and is fixed. The steel wire rope 5 is used to lower and install the submersible pump 2.

[0045] The submersible pump 2 is connected to a cable 21, and the well cover 3 is provided with a cable through hole. The cable 21 passes through the cable through hole and is connected to an external power source.

[0046] In actual use, first open the manhole cover 3, and lower the submersible pump 2 using the wire rope 5. When it reaches a certain depth, the tapered guide plate 4 restricts the lowering path of the submersible pump 2, facilitating its passage through the V-shaped through hole of the elastic snap-fit ​​cone 6. The submersible pump 2 continues to be lowered along the V-shaped through hole until the outer edge of its flange 22 snaps into the elastic snap-fit ​​cone 6. The submersible pump 2 is installed and connected by its own weight, and a double seal is achieved through the tight fit between the expansion sealing ring and the auxiliary sealing ring 25 on the flange 22 and the elastic snap-fit ​​cone 6.

[0047] When the submersible pump 2 is displaced during operation, causing the flange 22 on one side of the submersible pump 2 to tilt and lift, the first elastic element 7 presses against the elastic snap-fit ​​cone 6 inward to ensure a tight connection between the elastic snap-fit ​​cone 6 and the flange 22, thereby achieving radial sealing compensation. The first sealing ring 24 set at the bottom of the flange 22 is pushed out by the second elastic element 23, so that the first sealing ring 24 fits against the elastic snap-fit ​​cone 6, thereby achieving axial expansion and contraction compensation and ensuring the overall sealing of the device.

[0048] Finally, it should be noted that the above content is only used to illustrate the technical solution of this utility model, and is not intended to limit the scope of protection of this utility model. Simple modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model do not depart from the essence and scope of the technical solution of this utility model.

Claims

1. A well-type installation device for a submersible electric pump used in an electromechanical irrigation and drainage pumping station, characterized in that, Includes wellbore, submersible pump, sealing assembly, first elastic element, and elastic snap-fit ​​cone; The bottom of the inner side of the well shaft is provided with the elastic snap-fit ​​cone, and the middle part of the elastic snap-fit ​​cone is a V-shaped through hole that is wider at the top and narrower at the bottom; the upper end of the submersible pump is provided with a flange, the outer edge of the flange is adapted to the shape of the V-shaped through hole, the submersible pump passes through the V-shaped through hole and is snapped and fixed to the elastic snap-fit ​​cone by the flange; a sealing assembly is provided between the flange and the elastic snap-fit ​​cone; Several first elastic elements are provided between the inner wall of the well shaft and the elastic snap-fit ​​cone.

2. The well-type installation device for submersible electric pumps used in electromechanical irrigation and drainage pumping stations according to claim 1, characterized in that, The first elastic element is uniformly arranged along the circumferential direction of the inner wall of the wellbore.

3. The well-type installation device for submersible electric pumps used in electromechanical irrigation and drainage pumping stations according to claim 1, characterized in that, The sealing assembly includes a telescopic sealing ring and an auxiliary sealing ring; both the telescopic sealing ring and the auxiliary sealing ring are disposed on the flange.

4. The well-type installation device for submersible electric pumps used in electromechanical irrigation and drainage pumping stations according to claim 3, characterized in that, The flange has a first sealing groove at its bottom, and the telescopic sealing ring is disposed in the first sealing groove. The telescopic sealing ring includes a first sealing ring and several second elastic elements. One end of each second elastic element is connected to a first sealing groove, and the other end is connected to the first sealing ring.

5. The well-type installation device for submersible electric pumps used in electromechanical irrigation and drainage pumping stations according to claim 4, characterized in that, The second elastic element is evenly arranged along the circumference of the flange.

6. The well-type installation device for submersible electric pumps in electromechanical irrigation and drainage pumping stations according to claim 4, characterized in that, The shape of the protruding end of the first sealing ring matches the shape of the elastic snap-fit ​​cone.

7. The well-type installation device for submersible electric pumps used in electromechanical irrigation and drainage pumping stations according to claim 3, characterized in that, The flange also has a second sealing groove at its bottom, and the auxiliary sealing ring is disposed in the second sealing groove.

8. The well-type installation device for submersible electric pumps used in electromechanical irrigation and drainage pumping stations according to claim 1, characterized in that, The inner wall of the well is also provided with a conical guide plate, and the conical guide plate is provided with a number of drainage holes.

9. The well-type installation device for submersible electric pumps used in electromechanical irrigation and drainage pumping stations according to claim 1, characterized in that, The submersible pump well-type installation device for the electromechanical irrigation and drainage pumping station also includes a well cover and a steel wire rope. One end of the steel wire rope is connected to the submersible pump, and the other end passes through the well cover and is fixed. The steel wire rope is used to lower and install the submersible pump.

10. The well-type installation device for a submersible electric pump for an electromechanical irrigation and drainage pumping station according to claim 9, characterized in that, The submersible pump is connected to a cable, and the manhole cover is provided with a cable through hole, through which the cable is connected to an external power source.

Images