Water pump and oilfield sewage treatment device

Abstract

The utility model provides a water pump and an oil field sewage treatment device, the water pump comprises a pump body, a drainage assembly and a pump blade assembly, and a pump cavity and a drainage port communicated with the pump cavity are formed in the pump body; the drainage assembly comprises a drainage pipe and a rotating shaft part, a shaft sleeve extending in the axial direction of the drainage pipe is arranged on the outer wall of the drainage pipe, the rotating shaft part is in rotating fit with the shaft sleeve, and the drainage pipe comprises a first pipe body, a second pipe body and a third pipe body which are sequentially arranged in the axial direction of the rotating shaft part; at least one of the second pipe body and the third pipe body can rotate relative to the rotating shaft piece; the pump blade assembly is contained in the second pipe body. In the first state, the first pipe body, the second pipe body and the third pipe body are sequentially connected in a sealed mode and define a drainage channel communicated with the drainage opening. And in the second state, the second pipe body and the third pipe body are staggered in the trend of the drainage pipe so as to expose the pump blade assembly located in the second pipe body. The utility model aims to provide the water pump with the pump sheet convenient to disassemble.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a water pump and an oilfield sewage treatment device. Background Art

[0002] In order to obtain a higher recovery rate, most of the development wells in my country's oil fields adopt water injection development. The water content in crude oil is very high. In order to obtain qualified oil and gas products, it is necessary to separate the associated water from the oil and gas. The separated associated water contains a certain amount of crude oil and other impurities. These associated waters containing a certain amount of crude oil and other impurities are called oily wastewater.

[0003] In the process of oilfield wastewater treatment, water pumps are often needed to transport the wastewater. The mud and debris carried in the wastewater will cause damage to the pump blades during long-term use. Therefore, the pump blades need to be repaired and replaced in time.

[0004] At present, when repairing and replacing the pump blades of most water pumps, it takes a lot of time to repair because the outer casing of the water pump is inconvenient to disassemble, which reduces the sewage treatment efficiency during the pump downtime. Utility Model Content

[0005] The main purpose of the utility model is to provide a water pump, aiming to provide a water pump which is easy to disassemble the pump sheet.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a water pump, comprising

[0007] A pump body, wherein the pump body is formed with a pump cavity and a drain port communicating with the pump cavity;

[0008] A drainage assembly, the drainage assembly comprising a drainage pipe and a rotating shaft, the outer wall of the drainage pipe is provided with a shaft sleeve extending along the axial direction of the drainage pipe, the rotating shaft is rotatably matched with the shaft sleeve, the drainage pipe comprises a first tube body, a second tube body and a third tube body sequentially arranged along the axial direction of the rotating shaft, one end of the first tube body is connected to the pump body and communicated with the drainage port, and at least one of the second tube body and the third tube body is rotatable relative to the rotating shaft; and

[0009] A pump blade assembly, wherein the pump blade assembly is accommodated in the second tube body;

[0010] Wherein, the drain pipe has a first state and a second state. In the first state, the first tube body, the second tube body and the third tube body are sealed and connected in sequence and enclosed to form a drainage channel connected to the drain outlet; in the second state, the second tube body and the third tube body are staggered in the direction of the drain pipe to reveal the pump blade assembly located in the second tube body.

[0011] Optionally, the rotating shaft member includes a telescopic rod, the telescopic rod includes a fixed rod segment and a movable rod segment, one end of the fixed rod segment is connected to the pump body, and an end of the fixed rod segment away from the pump body is provided with a receiving groove along the axial direction of the fixed rod, and the movable rod segment can movably extend into the receiving groove from the notch of the receiving groove, the first tube body is correspondingly arranged at the fixed rod segment, and the third tube body is correspondingly limited to the end of the movable rod segment away from the fixed rod segment.

[0012] Optionally, the water pump also includes a fixing structure, which includes a positioning groove and a positioning protrusion, one of the positioning groove and the positioning protrusion is arranged at an end of the second tube body close to the third tube body, and the other of the positioning groove and the positioning protrusion is arranged at an end of the third tube body close to the second tube body, and the positioning protrusion is plugged into the positioning groove.

[0013] Optionally, the fixing structure further includes a buffer pad, which is accommodated in the positioning groove and is used to seal a gap between the positioning protrusion and the positioning groove.

[0014] Optionally, the positioning groove and the positioning protrusion are both annular structures, and the buffer pad is an annular rubber ring.

[0015] Optionally, the pump blade assembly includes blades and a positioning cover net, the positioning cover net is arranged close to the third tube body, a positioning column is provided on the side of the positioning cover net facing away from the third tube body, and the blade is rotatably sleeved on the positioning column.

[0016] Optionally, a positioning groove is formed between the edge of the positioning cover net and the second tube body;

[0017] A positioning protrusion is provided at one end of the third tube body close to the second tube body, and the positioning protrusion is plug-fitted with the positioning groove.

[0018] Optionally, the rotating shaft also includes a driving motor, which is accommodated in the bottom of the groove, and the output end of the driving motor is drivingly connected to the movable rod segment to drive the movable rod segment to move axially along the fixed rod segment.

[0019] Optionally, at least one of the pump body, the rotating shaft and the drain pipe has a rounded edge.

[0020] The utility model also provides an oilfield sewage treatment device, including a water pump, the water pump comprising:

[0021] A pump body, wherein the pump body is formed with a pump cavity and a drain port communicating with the pump cavity;

[0022] A drainage assembly, the drainage assembly comprising a drainage pipe and a rotating shaft, the outer wall of the drainage pipe is provided with a shaft sleeve extending along the axial direction of the drainage pipe, the rotating shaft is rotatably matched with the shaft sleeve, the drainage pipe comprises a first tube body, a second tube body and a third tube body sequentially arranged along the axial direction of the rotating shaft, one end of the first tube body is connected to the pump body and communicated with the drainage port, and at least one of the second tube body and the third tube body is rotatable relative to the rotating shaft; and

[0023] A pump blade assembly, wherein the pump blade assembly is accommodated in the second tube body;

[0024] Wherein, the drain pipe has a first state and a second state. In the first state, the first tube body, the second tube body and the third tube body are sealed and connected in sequence and enclosed to form a drainage channel connected to the drain outlet; in the second state, the second tube body and the third tube body are staggered in the direction of the drain pipe to reveal the pump blade assembly located in the second tube body. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0026] Figure 1 This is a structural schematic diagram of an embodiment of the water pump of the utility model (the drainage pipe is in the first state);

[0027] Figure 2 This is a schematic diagram of the structure of an embodiment of the water pump of the utility model (the drain pipe is in the second state);

[0028] Figure 3 for Figure 2 A magnified schematic diagram of center A.

[0029] Description of Figure Numbers:

[0030]

[0031]

[0032] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0035] In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0036] In order to obtain a higher recovery rate, most of the development wells in my country's oil fields adopt water injection development. The water content in crude oil is very high. In order to obtain qualified oil and gas products, it is necessary to separate the associated water from the oil and gas. The separated associated water contains a certain amount of crude oil and other impurities. These associated waters containing a certain amount of crude oil and other impurities are called oily wastewater.

[0037] In the process of oilfield wastewater treatment, water pumps are often needed to transport the wastewater. The mud and debris carried in the wastewater will cause damage to the pump blades during long-term use. Therefore, the pump blades need to be repaired and replaced in time.

[0038] At present, when repairing and replacing the pump blades of most water pumps, it takes a lot of time to repair because the outer casing of the water pump is inconvenient to disassemble, which reduces the sewage treatment efficiency during the pump downtime.

[0039] For this reason, please see Figures 1 to 3 The utility model provides a water pump 100, aiming to provide a water pump 100 that is easy to disassemble a pump sheet.

[0040] The utility model discloses a water pump 100 and an oilfield sewage treatment device. The water pump 100 comprises a pump body 1, a drainage assembly 2 and a pump blade assembly 24. The pump body 1 is formed with a pump cavity and a drainage port connected to the pump cavity; the drainage assembly 2 comprises a drainage pipe 21 and a rotating shaft 23. The outer wall of the drainage pipe 21 is provided with a shaft sleeve 22 extending along the axial direction of the drainage pipe 21. The rotating shaft 23 is rotatably matched with the shaft sleeve 22. The drainage pipe 21 comprises a first tube body 211, a second tube body 212 and a third tube body 213 which are sequentially arranged along the axial direction of the rotating shaft 23. One end of the first tube body 211 is connected to the pump body 211. 1 is connected and communicated with the drain outlet, and at least one of the second tube body 212 and the third tube body 213 is rotatable relative to the rotating shaft 23; the pump blade assembly 24 is accommodated in the second tube body 212; wherein the drain pipe 21 has a first state and a second state, in which the first tube body 211, the second tube body 212 and the third tube body 213 are sealed and connected in sequence and enclosed to form a drainage channel communicating with the drain outlet; in the second state, the second tube body 212 and the third tube body 213 are staggered in the direction of the drain pipe 21 to reveal the pump blade assembly 24 located in the second tube body 212.

[0041] The water pump 100 provided by the utility model, when the pump blades need to be replaced or repaired, it is only necessary to rotate the second tube body 212 or the third tube body 213 of the drain pipe 21 around the rotating shaft 23 through the axial hole, so that the drain pipe 21 is in the second state where the second tube body 212 and the third tube body 213 are staggered with each other, that is, the pump blade assembly 24 located in the second tube body 212 can be exposed from the drain pipe 21. Compared with the prior art, there is no need to directly disassemble the outer shell of the pump body 1, which avoids the tediousness and trouble in the process of disassembling the outer shell, and the operation is simple and easy to control. When the drain pipe 21 needs to be used for drainage, it is only necessary to connect the first tube body 211, the second tube body 212 and the third tube body 213 to form a drain pipe 21 with a complete drainage channel, which does not affect the normal operation and use of the water pump 100.

[0042] It should be noted that, in order to ensure the sealing performance of the drain pipe 21 in the first state, it is usually necessary to use a sealing ring for sealing. The sealing ring can be additionally sleeved on the outer side of the connection between the first tube body 211, the second tube body 212 and the third tube body 213. When the pump blade needs to be repaired or replaced, the sealing ring can be removed in advance. However, this sealing method is not stable enough. During the operation of the water pump 100, the sewage will impact the side wall of the drain pipe 21, causing the drain pipe 21 to shake or vibrate. The sealing ring is easily displaced in this case. Therefore, in order to further improve the sealing effect, in an embodiment of the present application, the rotating shaft 23 includes a telescopic rod 231, and the telescopic rod 231 includes a fixed rod section and a movable rod section. One end of the fixed rod section is connected to the pump body 1, and the end of the fixed rod section away from the pump body 1 is provided with a groove along the axial direction of the fixed rod. The movable rod section can be movably extended into the groove from the notch of the groove. The first tube body 211 is correspondingly arranged at the fixed rod section, and the third tube body 213 is correspondingly limited to the end of the movable rod section away from the fixed rod section. In this way, a sealing ring can be installed at the port where the first tube body 211 and the second tube body 212 are connected, and at the port where the second tube body 212 and the third tube body 213 are connected. The maintenance personnel can control the mutual compression and separation between the first tube body 211, the second tube body 212 and the third tube body 213 by operating the telescopic rod 231 to achieve a more effective sealing effect and make it easier to unscrew the second tube body 212 and the third tube body 213.

[0043] In addition to using a sealing ring for sealing, in one embodiment of the present application, the water pump 100 further includes a fixing structure 25, the fixing structure 25 includes a positioning groove 251 and a positioning protrusion 252, one of the positioning groove 251 and the positioning protrusion 252 is arranged at one end of the second tube body 212 close to the third tube body 213, the other of the positioning groove 251 and the positioning protrusion 252 is arranged at one end of the third tube body 213 close to the second tube body 212, and the positioning protrusion 252 is plugged into and matched with the positioning groove 251. Of course, the above-mentioned fixing structure 25 can also be used at the connection between the second tube body 212 and the first tube body 211. After the telescopic rod 231 is retracted, the positioning protrusion 252 and the positioning groove 251 in the fixing structure 25 can avoid the appearance of gaps between the tube bodies, thereby causing the waste water to leak out of the drain pipe 21.

[0044] Considering that after the telescopic rod 231 is retracted, the positioning protrusion 252 will contact with the bottom of the positioning groove 251 or directly hit the bottom of the positioning groove 251, which is easy to make noise and damage the fixed structure 25. In order to solve the above problems, in one embodiment of the present application, the fixed structure 25 also includes a buffer pad, which is accommodated in the positioning groove and is used to seal the gap between the positioning protrusion 252 and the positioning groove. The buffer pad is generally made of soft and elastic rubber or foam. On the one hand, when the positioning protrusion 252 contacts the buffer pad, the impact force when colliding with the positioning protrusion 252 can be reduced or eliminated. On the other hand, the deformation of the buffer pad after being compressed can also play the role of sealing the gap, further ensuring the sealing performance between the tube body and the tube body.

[0045] Since the end surface of the pipe body is usually annular, in one embodiment of the present application, the positioning groove and the positioning protrusion 252 are both annular, and the buffer pad is an annular rubber ring. The annular positioning groove, positioning protrusion 252 and rubber ring can better ensure the sealing of the drain pipe 21.

[0046] To facilitate the disassembly and assembly of the pump blades, in one embodiment of the present application, the pump blade assembly 24 includes a blade 241, a positioning cover net 242, and a driving member. The positioning cover net 242 is arranged close to the third tube body 213. A positioning column is arranged on the side of the positioning cover net 242 away from the third tube body 213, and the blade 241 is rotatably sleeved on the positioning column. The diameter of the positioning cover net 242 is generally smaller than the diameter of the second tube body 212, so that maintenance personnel can easily move the positioning cover net 242 and the blade 241 arranged on the positioning cover net 242.

[0047] Furthermore, in an embodiment of the present application, a positioning groove 251 is formed between the edge of the positioning cover net 242 and the second tube body 212; a positioning protrusion 252 is provided at one end of the third tube body 213 close to the second tube body 212, and the positioning protrusion 252 is plugged into the positioning groove 251. In this way, the gap between the positioning cover net 242 and the inner wall of the second tube body 212 can be reasonably utilized, the groove process step can be eliminated, and the manufacturing cost can be reduced.

[0048] Of course, in order to facilitate the extension and retraction of the telescopic rod 231, in one embodiment of the present application, the rotating shaft 23 also includes a driving motor, which is accommodated at the bottom of the groove, and the output end of the driving motor is connected to the movable rod segment for driving the movable rod segment to move axially along the fixed rod segment.

[0049] Considering the safety performance of the water pump 100, in one embodiment of the present application, at least one of the edges of the pump body 1, the rotating shaft 23 and the drain pipe 21 is rounded. Providing rounded corners in the pump body 1 can prevent the staff from accidentally colliding with sharp edges during operation or maintenance, thereby avoiding potential injuries. In addition, the rounded corner design can also reduce the friction and damage between the pump body 1 and other equipment or pipelines, and improve the service life of the equipment. Similarly, setting the edges of the rotating shaft 23 as rounded corners can reduce the friction and collision between the rotating parts and other parts, reduce the risk of mechanical failure, and the rounded corner design can also reduce the vibration and noise generated by the rotating shaft 23 when running at high speed, and improve the stability and reliability of the equipment. Providing rounded corners in the drain pipe 21 can reduce the resistance of the liquid flow and improve the drainage efficiency. In addition, the rounded corner design can also reduce the friction between the inner wall of the pipe and the water flow, and reduce the possibility of pipe wear and blockage.

[0050] The present application also provides an oilfield wastewater treatment device, including a water pump 100, wherein the specific structure and specific installation method of the water pump 100 refer to the above-mentioned embodiment. Since the oilfield wastewater treatment device adopts all the technical solutions of all the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which are not described one by one here.

[0051] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the concept of the invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A water pump, characterized in that: include: A pump body, wherein the pump body is formed with a pump cavity and a drain port communicating with the pump cavity; A drainage assembly, the drainage assembly comprising a drainage pipe and a rotating shaft, the outer wall of the drainage pipe is provided with a shaft sleeve extending along the axial direction of the drainage pipe, the rotating shaft is rotatably matched with the shaft sleeve, the drainage pipe comprises a first tube body, a second tube body and a third tube body sequentially arranged along the axial direction of the rotating shaft, one end of the first tube body is connected to the pump body and communicated with the drainage port, and at least one of the second tube body and the third tube body is rotatable relative to the rotating shaft; as well as A pump blade assembly, wherein the pump blade assembly is accommodated in the second tube body; Wherein, the drain pipe has a first state and a second state. In the first state, the first tube body, the second tube body and the third tube body are sealed and connected in sequence and enclosed to form a drainage channel connected to the drain outlet; in the second state, the second tube body and the third tube body are staggered in the direction of the drain pipe to reveal the pump blade assembly located in the second tube body.

2. The water pump according to claim 1, characterized in that The rotating shaft member includes a telescopic rod, and the telescopic rod includes a fixed rod section and a movable rod section. One end of the fixed rod section is connected to the pump body, and an end of the fixed rod section away from the pump body is provided with a receiving groove along the axial direction of the fixed rod. The movable rod section can movably extend into the receiving groove from the notch of the receiving groove. The first tube body is correspondingly arranged at the fixed rod section, and the third tube body is correspondingly limited to the end of the movable rod section away from the fixed rod section.

3. The water pump according to claim 2, characterized in that: The water pump also includes a fixing structure, which includes a positioning groove and a positioning protrusion. One of the positioning groove and the positioning protrusion is arranged at an end of the second tube body close to the third tube body, and the other of the positioning groove and the positioning protrusion is arranged at an end of the third tube body close to the second tube body. The positioning protrusion is plugged into the positioning groove.

4. The water pump according to claim 3, characterized in that: The fixing structure further includes a buffer pad, which is accommodated in the positioning groove and is used to seal a gap between the positioning protrusion and the positioning groove.

5. The water pump according to claim 4, characterized in that The positioning groove and the positioning protrusion are both annular structures, and the buffer pad is an annular rubber ring.

6. The water pump according to claim 2, characterized in that: The pump blade assembly includes blades and a positioning cover net, the positioning cover net is arranged close to the third tube body, a positioning column is arranged on the side of the positioning cover net away from the third tube body, and the blade is rotatably sleeved on the positioning column.

7. The water pump according to claim 6, characterized in that A positioning groove is formed between the edge of the positioning cover net and the second tube body; A positioning protrusion is provided at one end of the third tube body close to the second tube body, and the positioning protrusion is plug-fitted with the positioning groove.

8. The water pump according to claim 2, characterized in that: The rotating shaft also includes a driving motor, which is accommodated in the bottom of the accommodating groove. The output end of the driving motor is drivingly connected to the movable rod segment to drive the movable rod segment to move axially along the fixed rod segment.

9. The water pump according to claim 1, characterized in that: At least one of the pump body, the rotating shaft and the drain pipe has a rounded edge.

10. An oilfield wastewater treatment device, characterized in that: Comprising the water pump according to any one of claims 1 to 9.

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