Mounting structure and method for automatic coupling mounting of submersible pump of water collecting well

Abstract

The invention relates to the technical field of submersible pump installation, and particularly discloses an installation structure and method for automatic coupling installation of a submersible pump of a water-collecting well, and the installation structure and method are used for connecting the bottom of a lifting pipe with the submersible pump. Comprising a connecting pipeline installed at the bottom of a lifting pipe and communicated with the lifting pipe, two sets of guide rails parallel to the lifting pipe and forming a sliding groove, a connecting plate connected with a water outlet of the submersible pump, and a sliding limiting device connected with the connecting plate and used for connecting the connecting plate with the end, away from the lifting pipe, of the connecting pipeline in a pressing mode. The sliding limiting device is matched with the side, away from the submersible pump, of the connecting plate to form a slot for inserting one end, away from the lifting pipe, of the connecting pipeline; the sliding limiting device is located in the sliding groove and is in sliding fit with the guide rail, and the end, away from the lifting pipe, of the connecting pipeline is located in the sliding groove. The submersible pump can accurately and automatically slide down to a mounting position through the guide rail, and rapid butt joint of the submersible pump and the lifting pipe is achieved; the operation is simple and convenient; and the construction safety is greatly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of submersible pump installation, and more particularly to an installation structure and method for automatically coupling and installing a submersible pump in a catch basin. BACKGROUND

[0002] Installation and replacement of a submersible pump in a catch basin are key projects for maintenance of a catch basin drainage system. At present, installation and replacement of a submersible pump in a catch basin mainly adopt a flange bolt mechanical connection mode. The traditional technology has significant technical defects: Firstly, the submersible pump is installed at the bottom of the catch basin, and the installation and replacement must completely drain the accumulated water in the catch basin. For a catch basin with a relatively deep depth or a relatively large water inflow, the energy consumption and operation delay of drainage result in reduced system reliability and increased operation and maintenance costs. Secondly, the flange connection needs to be bolted on site during installation, which is difficult for workers to operate and has low efficiency due to the narrow space underground, and there is a risk of non-compliance of bolt torque. At the same time, the high humidity and low illumination environment of the confined space also involves poor ventilation, accumulation of harmful gases, worker slipping and other safety hazards, further increasing the construction complexity and safety control pressure. SUMMARY

[0003] The technical problem to be solved by the present application is to provide an installation structure and method for automatically coupling and installing a submersible pump in a catch basin. A sliding system formed by guide rails enables the submersible pump to be precisely and automatically lowered to the installation position, achieving rapid butt joint of the submersible pump and the water lifting pipe. The operation is simple and convenient. The solution adopted by the present application to solve the technical problem is: An installation structure for automatically coupling and installing a submersible pump in a catch basin is used for connecting the bottom of a water lifting pipe and the submersible pump, comprising a connecting pipe installed at the bottom of the water lifting pipe and communicating with the water lifting pipe, two groups of guide rails arranged in parallel with the water lifting pipe and forming a sliding groove, a connecting plate connected with the water outlet of the submersible pump, and a sliding limiting device connected with the connecting plate and pressing the connecting plate away from the one end of the connecting pipe far from the water lifting pipe. The sliding limiting device and the side of the connecting plate far from the submersible pump cooperate to form a slot for inserting the one end of the connecting pipe far from the water lifting pipe. The sliding limiting device is located in the sliding groove and slidably cooperates with the guide rail, and the one end of the connecting pipe far from the water lifting pipe is located in the sliding groove.

[0004] In some possible embodiments, the sliding limiting device comprises a mounting plate connected with the top of the connecting plate, a limiting shaft mounted at the bottom of the mounting plate, and a wheel set mounted at both ends of the limiting shaft and slidably cooperating with the guide rail. The limiting shaft and the connecting plate form a slot for inserting the top of the one end of the connecting pipe far from the water lifting pipe.

[0005] In some possible implementation manners, the connecting pipe comprises a flange connected to the bottom of the water-lifting pipe, an elbow coaxially connected to the flange, and a plug plate communicated with the other end of the elbow; the plug plate is provided with a slope on the side close to the elbow, and the slope is in abutting fit with the limiting shaft; and the included angle between the slope and the long axis direction of the water-lifting pipe is an acute angle.

[0006] In some possible implementation manners, a sealing groove is arranged on the outer side of the connecting plate, and a sealing ring is arranged between the connecting plate and the plug plate.

[0007] In some possible implementation manners, the mounting plate is provided with a mounting lug on the bottom, and the two ends of the limiting shaft are connected with the mounting lug respectively.

[0008] In some possible implementation manners, the wheel set comprises a connecting shaft coaxially sleeved in the limiting shaft, and the wheel set is connected with the two ends of the connecting shaft respectively; the connecting shaft and the end of the limiting shaft form a clamping groove, and a clamping spring is arranged in the clamping groove.

[0009] In some possible implementation manners, the two groups of guide rails are provided with grooves in sliding fit with the wheel set on the side close to each other.

[0010] In some possible implementation manners, the axis of the long direction of the sliding groove is in the same plane as the axis of the water-lifting pipe.

[0011] In another aspect, The application provides an automatic coupling installation method for a submersible pump of a water collecting well, and specifically comprises the following steps. Step S1: connecting pipe installation; Step S2: guide rail installation according to the position of the end of the connecting pipe away from the water-lifting pipe; Step S3: centering connection of the sliding limiting device and the top of the connecting plate to form an integral structure; Step S4: hoisting of the integral structure by using a hoisting device, and sliding of the integral structure along the long direction of the sliding groove to the side close to the connecting pipe until the end of the connecting pipe away from the water-lifting pipe is inserted into the plug-in groove and the connecting plate is attached to the connecting pipe.

[0012] In some possible implementation manners, when the guide rail is installed, the end of the connecting pipe away from the water-lifting pipe is located in the sliding groove, and the center of the end is on the axis of the long direction of the sliding groove.

[0013] Compared with the prior art, the application has the following beneficial effects: The automatic coupling device is adopted to replace the flange connection, the quick butt joint of the submersible pump and the water outlet pipeline is realized, the vertical sliding is adopted, the submersible pump can be accurately and automatically slid down to the installation position, more than 80% of the downhole operation steps are reduced compared with the traditional mode, the time consumption of installation and replacement is shortened to 1 / 3 of the original, the manpower demand is reduced by 70%, and the application is especially suitable for scenes with high time efficiency requirements such as repair and rescue; When the submersible pump is maintained by adopting the application, the connection is realized by the crimping mode, the design concept of 'zero downhole operation' is realized, the safety of downhole operation is greatly improved, the operation risk of the operator in the limited space is eliminated, and traditional construction hidden dangers such as suffocation, falling and drowning are avoided; the mechanical positioning is used to replace manual positioning throughout the process, and mechanical injury is avoided; The application can effectively ensure the stability and reliability of the operation of the submersible pump, and prolong the service life of the equipment; The application can be compatible with various pump types of different diameters, and can adapt to different well depths by adjusting the splicing length of the guide rail; BRIEF DESCRIPTION OF DRAWINGS Figure 1 It is a structure diagram for connecting the submersible pump and the water lifting pipe; Figure 2 It is a front view of the sliding limiting device and the connecting plate in the application; Figure 3 It is a side view of Figure 2 ; Figure 4 It is a sectional view of Figure 2 A-A in the application; Figure 5 It is an enlarged view of A in the application Figure 1 ; Figure 6 It is an enlarged view of B in the application Figure 5 ; Among them: 100, submersible pump; 200, water lifting pipe; 1, connecting pipeline; 11, flange; 12, elbow; 13, plug plate; 131, inclined surface; 2, guide rail; 3, connecting plate; 30, sealing ring; 31, sealing groove; 4, sliding limiting device; 40, insertion slot; 41, mounting plate; 42, limiting shaft; 43, wheel set; 44, clamping groove; 5, distributed rigid fixed support. DETAILED DESCRIPTION

[0014] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integral; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship of two elements. The "first", "second" and similar words mentioned in the present application do not represent any order, quantity or importance, but only distinguish different components. Similarly, "one" or "a" and the like do not represent a quantity limit, but represent the existence of at least one. In the implementation of the present application, the association relationship of the associated objects is described as "and / or", which means that there can be three relationships, for example, A and / or B can represent: A exists alone, A and B exist together, and B exists alone. In the description of the embodiments of the present application, unless otherwise specified, "a plurality of" means two or more. For example, a plurality of positioning columns means two or more positioning columns. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0015] The present application will be described in detail below.

[0016] As Figures 1-6 shown: An installation structure for automatic coupling installation of a water collecting well submersible pump, used for connecting the bottom of a water lifting pipe 200 arranged vertically and the submersible pump 100, to realize the maintenance and replacement of the submersible pump 100; It comprises a connecting pipe 1 mounted at the bottom of the water lifting pipe 200 and communicating with the water lifting pipe 200, two groups of guide rails 2 arranged in parallel with the water lifting pipe 200 and forming a sliding chute, a connecting plate 3 connected with the water outlet of the submersible pump 100, and a sliding limiting device 4 connected with the connecting plate 3 and pressing the connecting plate 3 away from the one end of the connecting pipe 1 away from the water lifting pipe 200; the sliding limiting device 4 and the side of the connecting plate 3 away from the submersible pump 100 cooperate to form a slot 40 for the one end of the connecting pipe 1 away from the water lifting pipe 200 to insert; the sliding limiting device 4 is located in the sliding chute and slidably cooperates with the guide rail 2, and the one end of the connecting pipe 1 away from the water lifting pipe 200 is located in the sliding chute; the axis of the sliding limiting device 4 along the length direction of the sliding chute, the axis of the length direction of the sliding chute and the axis of the water lifting pipe 200 are in the same plane; The two groups of guide rails 2 are arranged vertically and the bottom is mounted at the bottom of the water collecting well and connected with the well wall of the water collecting well through a distributed rigid fixed support 5; The opening of the slot 40 is downward. When in use, the end of the connecting pipe 1 away from the water pumping pipe 200 is located in the slide groove and aligned with the slide groove. Then, a lifting device is used to lift the overall structure formed by the sliding limit device 4 and the submersible pump 100. The sliding limit device 4 is located in the slide groove and slides with the guide rail, so that the overall structure slides along the long direction of the slide groove until the end of the connecting pipe 1 close to the water pumping pipe 200 is inserted into the slot 40, and the end face of the connecting pipe 1 away from the water pumping pipe 200 will fit with the end face of the connecting plate 3, thereby realizing the connection between the submersible pump 100 and the water pumping pipe 200.

[0017] In some possible implementations, such as Figure 3 、 Figure 4 As shown, the sliding limit device 4 includes a mounting plate 41 connected to the top of the connecting plate 3, a limit shaft 42 mounted on the bottom of the mounting plate 41, and a wheel set 43 mounted on both ends of the limit shaft 42 and slidingly engaged with the guide rail 2; a slot 40 is formed between the limit shaft 42 and the connecting plate 3 for inserting the top of the end of the connecting pipe 1 away from the water supply pipe 200; The bottom of the mounting plate 41 is connected to the connecting plate 3 to form an inverted L-shaped structure. The limiting shaft 42 is located at the bottom of the mounting plate 41, and a slot 40 is formed between the two. The sliding limiting device 4 slides vertically downward in the slide groove, and the connecting pipe 1 is fixed in the slide groove. The opening of the slot 40 is downward, so that the top of the connecting pipe 1 will be inserted into the slot 40. The side of the connecting pipe 1 away from the connecting plate 3 will be abutted and limited by the limiting shaft 42, and the other side will abut against the side of the connecting plate 3 away from the submersible pump 100.

[0018] In some possible implementations, such as Figure 5 、 Figure 6 As shown, the connecting pipe 1 includes a flange 11 connected to the bottom of the water supply pipe 200, a bend 12 coaxially connected to the flange 11, and a plug 13 connected to the other end of the bend 12. The plug 13 is provided with an inclined surface 131 on the side close to the bend 12, which abuts against the limit shaft 42. The angle formed by the inclined surface 131 and the long axis direction of the water supply pipe 200 is an acute angle. With this arrangement, after the inclined surface 131 enters the slot 40, the limiting shaft 42 abuts against the inclined surface 131 and continues to slide downward along the inclined surface 131. When the connecting pipe 1 and the connecting plate 3 approach each other and contact and fit on one side, the limiting shaft 42 will no longer slide downward, and the connection between the two will be stable. Compared with the existing technology, this method no longer requires the use of bolt connection to achieve connection, greatly reducing the number of underground operation steps, improving installation efficiency and underground operation safety. The flange plate 11 of the connecting pipe 1 is connected with the bottom of the water lifting pipe 200 through bolts; the elbow pipe 12 is a 90° elbow pipe, which realizes the conversion from vertical to horizontal direction, connects the water lifting pipe with the submersible pump, and the plug plate 13 is coaxially communicated with the end of the elbow pipe 12 away from the flange plate 11. Specifically, the sliding limiting device 4 is made of stainless steel material with high strength; good wear resistance and corrosion resistance are ensured.

[0019] In some possible embodiments, as shown in Figure 5 , Figure 6 In order to make the connecting plate 3 and the connecting pipe 1 have good sealing performance after being pressed by the limiting shaft 42, a sealing groove 31 is arranged on the outer side of the connecting plate 3, and a sealing ring 30 is arranged between the connecting plate 3 and the plug plate 13.

[0020] In some possible embodiments, as shown in Figure 2 In order to facilitate the installation of the limiting shaft 42, mounting lugs are arranged on the bottom of the mounting plate 41, and the two ends of the limiting shaft 42 are connected with the mounting lugs, respectively. Specifically, the mounting lugs are two groups, which are mounted on the bottom of the mounting plate 41, the limiting shaft 42 is horizontally arranged and connected with the mounting lugs at both ends, and the distance between the two groups of mounting lugs is greater than the width of the connecting pipe 1 along the length direction of the limiting shaft 42 near the end close to the connecting plate 3; in this way, the interference between the mounting lugs and the connecting pipe 1 is avoided. Further, the limiting shaft 42 is in a cylindrical shape.

[0021] In some possible embodiments, as shown in Figure 2 , Figure 3 The wheel set 43 includes a connecting shaft coaxially sleeved in the limiting shaft 42 and a wheel set connected with the two ends of the connecting shaft, respectively; the connecting shaft and the end of the limiting shaft 42 form a clamping groove 44, and a clamping spring is mounted in the clamping groove 44; the recesses for sliding cooperation with the wheel set are arranged on the side of the two guide rails 2 close to each other. The connecting shaft is sleeved in the limiting shaft 42 and coaxially arranged, the two ends of the connecting shaft are connected with the wheel set, the wheel set is located in the sliding groove of the guide rail 2 to realize sliding cooperation, and the clamping spring is arranged to effectively avoid the movement of the connecting shaft along the axis of the limiting shaft 42 during sliding, so that the misalignment of the connecting plate 3 and the connecting pipe 1 after being pressed and fitted is avoided.

[0022] On the other hand: The application provides an automatic coupling installation method for a water collecting well submersible pump 100, which specifically includes the following steps: Step S1: installing a connecting pipe 1; Step S2: according to the position of the connecting pipe 1 away from the one end of the water lifting pipe 200, the guide rail 2 is installed; Specifically, the guide rail 2 is vertically arranged and installed at the bottom of the water collecting well, and is connected with the well wall through the distributed rigid fixing support 5, so that the stability is good. Further, when the guide rail 2 is installed, the one end of the connecting pipe 1 away from the water lifting pipe 200 is located in the sliding groove, and the center of the end is on the axis in the long direction of the sliding groove.

[0023] Step S3: the sliding limiting device 4 is connected with the top of the connecting plate 3 in the center, and the overall structure is formed. Step S4: the overall structure is hoisted by using the hoisting device, and the overall structure is slid along the long direction of the sliding groove to the side close to the connecting pipe 1 until the one end of the connecting pipe 1 away from the water lifting pipe 200 is inserted into the insertion slot 40 and the connecting plate 3 is attached to the connecting pipe 1.

[0024] When the overall structure is hoisted and slid, the speed damping control and anti-swing correction function are provided by the hoisting equipment, so that the overall structure realizes automatic sliding under the guidance of gravity. The automatic coupling device is used to replace the flange connection, the vertical sliding is used to make the submersible pump 100 accurately and automatically slide to the installation position, more than 80% of the downhole operation steps are reduced compared with the traditional mode, the installation and replacement time is shortened to 1 / 3 of the original, the manpower demand is reduced by 70%, and the application is especially suitable for scenes with high time efficiency requirements such as repair and rescue; When the submersible pump 100 is maintained by using the application, the connection is realized by the crimping mode, the "zero downhole operation" design concept is realized, the safety of downhole operation is greatly improved, the operation risk of the operator in the limited space is eliminated, and traditional construction hidden dangers such as suffocation, falling and drowning are avoided; the mechanical positioning is used to replace manual positioning, and mechanical injury is avoided; The application can effectively ensure the stability and reliability of the operation of the submersible pump 100, and prolong the service life of the equipment; The application can be compatible with various pump types of different diameters, and can adapt to different well depths by adjusting the splicing length of the guide rail 2.

[0025] The application is not limited to the foregoing specific embodiments. The application extends to any new feature or any new combination disclosed in the specification, and any new method or process step or any new combination disclosed.

Claims

1. An automatic coupling installation structure for a water collection well submersible pump, used for connecting the bottom of a water collection pipe with a submersible pump, characterized in that: It includes a connecting pipe installed at the bottom of the water pumping pipe and connected to the water pumping pipe, two groups of guide rails arranged parallel to the water pumping pipe and forming a slide groove, a connecting plate connected to the water outlet of the submersible pump, and a sliding limit device connected to the connecting plate and crimping the connecting plate and the connecting pipe away from the water pumping pipe; the sliding limit device cooperates with the side of the connecting plate away from the submersible pump to form a slot for inserting the connecting pipe away from the end of the water pumping pipe; the sliding limit device is located in the slide groove and slidably cooperates with the guide rail, and the end of the connecting pipe away from the water pumping pipe is located in the slide groove.

2. The automatic coupling installation structure of a water collection well submersible pump according to claim 1 is characterized in that: The sliding limit device includes a mounting plate connected to the top of the connecting plate, a limit shaft installed at the bottom of the mounting plate, and a wheel set installed at both ends of the limit shaft and slidingly engaged with the guide rail; a slot is formed between the limit shaft and the connecting plate for inserting the top of the connecting pipe away from the water pumping pipe.

3. The automatic coupling installation structure for a water collection well submersible pump according to claim 1 is characterized in that: The connecting pipe includes a flange connected to the bottom of the water pumping pipe, a curved pipe coaxially connected to the flange, and a plug plate connected to the other end of the curved pipe; a sloped surface that abuts against the limit shaft is provided on the side of the plug plate close to the curved pipe; the angle formed by the sloped surface and the long axis direction of the water pumping pipe is an acute angle.

4. The automatic coupling installation structure for a water collection well submersible pump according to claim 3 is characterized in that: A sealing groove is provided on the outer side of the connecting plate, and a sealing ring is provided between the connecting plate and the plug plate.

5. The automatic coupling installation structure for a water collection well submersible pump according to claim 2, characterized in that: A mounting lug is provided at the bottom of the mounting plate, and both ends of the limiting shaft are respectively connected to the mounting lug.

6. The automatic coupling installation structure for a water collection well submersible pump according to claim 5, characterized in that: The wheel set includes a connecting shaft coaxially sleeved in the limiting shaft and a wheel set respectively connected to both ends of the connecting shaft; a clamping groove is formed between the ends of the connecting shaft and the limiting shaft, and a clamping spring is installed in the clamping groove.

7. The automatic coupling installation structure for a water collection well submersible pump according to claim 6, characterized in that: A groove that slides with the wheel set is provided on one side of the two groups of guide rails close to each other.

8. The automatic coupling installation structure for a water collection well submersible pump according to any one of claims 1 to 7, characterized in that: The axis of the chute in the long direction is in the same plane as the axis of the water pumping pipe.

9. A method for automatically coupling and installing a submersible pump for a water collection well, based on the installation structure for automatically coupling and installing a submersible pump for a water collection well according to any one of claims 1 to 8, characterized in that: The specific steps include: Step S1: connecting pipe installation; Step S2: installing the guide rail according to the position of the connecting pipe away from one end of the water pumping pipe; Step S3: Aligning and connecting the sliding limit device with the top of the connecting plate to form an integral structure; Step S4: Use a lifting device to lift the entire structure and slide the entire structure along the long direction of the slide toward the side close to the connecting pipe until the connecting pipe is inserted into the slot away from the end of the water pumping pipe and the connecting plate fits with the connecting pipe.

10. The method for automatically coupling and installing a submersible pump for a water collection well according to claim 9, characterized in that: When installing the guide rail, control the end of the connecting pipe away from the water pumping pipe to be located in the chute and the center of the end is on the long axis of the chute.

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