BB2 pump with cleaning structure

Abstract

The utility model discloses a BB2 pump with a cleaning structure. The impeller is installed in the pump body, the inlet and the outlet are formed in the top of the pump body, a filter screen is arranged in the inlet, a cleaning mechanism is further arranged in the inlet, and the cleaning mechanism comprises a sweeping assembly arranged on the filter screen and a discharging assembly arranged in the pump body. According to the automatic cleaning device, impurities on the surface of the filter screen can be automatically cleaned through the cleaning mechanism, a worker does not need to manually open the BB2 pump for cleaning, and the cleaning effect and the cleaning efficiency are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to chemical pump technical field, specifically a kind of BB2 pump with cleaning structure. BACKGROUND

[0002] BB2 pump is installed at the bottom of xylene tower, BB2 pump is the key equipment in PX device, chemical liquid can be transported, BB2 pump is a centrifugal pump widely used in petrochemical industry, its structure and technical features meet API 610 11th edition standard.The design of BB2 pump aims at meeting the needs of harsh and heavy work site in petrochemical process, with the characteristics of safe and reliable structure, stable operation, convenient maintenance and long service life.

[0003] In prior art, BB2 pump is used in the process, some impurities are contained in the liquid transported, which can cause wear and damage of internal impeller, generally, filter screen structure is installed at inlet, impurities in the liquid entering can be intercepted and filtered by filter screen structure, to reduce the influence on internal impeller, but many impurities are covered on the surface of filter screen after long use, and the impurities covered on the surface of filter screen need to be cleaned by manual opening BB2 pump regularly, which increases the operation workload of operator, and it is time-consuming and laborious to clean, therefore, we provide a kind of BB2 pump with cleaning structure. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of BB2 pump with cleaning structure to solve the technical problems in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of BB2 pump with cleaning structure, including pump body, impeller installed in the inside of pump body and inlet and outlet installed at the top of pump body, the inside of the inlet is provided with filter screen, the inside of the inlet is also provided with cleaning mechanism, the cleaning mechanism includes:

[0006] Cleaning assembly is arranged on filter screen, for cleaning the impurities covered on the surface of filter screen;

[0007] Discharge assembly is arranged in the inside of pump body, for discharging the impurities after cleaning.

[0008] Preferably, the discharge assembly includes spherical shell installed in the inner wall of inlet and rotating rod fixed in the inside of filter screen, both ends of the rotating rod pass through the inside of the inlet and extend to the outside of inlet, the outside of the inlet is fixedly provided with driving motor, and the working end of driving motor is fixedly connected with one end of rotating rod, the other end of rotating rod is fixedly provided with gear.

[0009] Preferably, the outside of the inlet is fixedly provided with two groups of arc-shaped blocks, the inside of the arc-shaped blocks is slidably provided with a tooth ring, a gear is engaged with the tooth ring, and the inner wall of the spherical shell is fixedly provided with a limiting plate.

[0010] Preferably, the inside of the spherical shell is fixedly provided with a plurality of connecting pipes, one end of the connecting pipes extends to the outside of the inlet, the other end of the connecting pipes is fixedly provided with a concentrating pipe, the outside of the concentrating pipe is fixedly provided with a discharge pipe, and the concentrating pipe and the discharge pipe are in communication.

[0011] Preferably, the inside of the connecting pipe is provided with an opening and closing piece, the opening and closing piece comprises a rotating column rotatably arranged on the connecting pipe, the bottom of the rotating column is fixedly provided with a baffle disc, the outside of the rotating column is fixedly provided with a fixed disc, and the outer wall of the fixed disc is fixedly provided with a rubber ring.

[0012] Preferably, the cleaning assembly comprises a vertical rod rotatably arranged on the filter screen, and the outside of the vertical rod is respectively provided with a shell and a turbine.

[0013] Preferably, the outer wall of the vertical rod is fixedly provided with a cleaning brush, the inner wall of the spherical shell is fixedly provided with two groups of limiting plates, and the other end of the cleaning brush extends to between the two groups of limiting plates.

[0014] Preferably, the end of the connecting pipe extending to the outside of the inlet is provided with a plug, the plug comprises a rubber plug ball arranged at one end of the connecting pipe and a ring frame fixedly arranged in the connecting pipe, the inside of the ring frame is slidably provided with a moving column, one end of the moving column is fixedly provided with a small rubber bead, and the other end of the moving column is fixedly provided with a large rubber bead.

[0015] Preferably, the outer wall of the ring frame is fixedly provided with two groups of convex plates, the convex plates are fixedly provided with an elastic rope between the convex plates and the rubber plug ball, the outer wall of the small rubber bead is in contact with the rubber plug ball, and the outer wall of the large rubber bead is in contact with the baffle disc.

[0016] Preferably, the inside of the pump body is respectively provided with a pump shaft and a sliding bearing, and the sliding bearing is located between the pump shaft and the inner wall of the pump body.

[0017] Compared with the prior art, the utility model has the advantages that:

[0018] (1) The cleaning mechanism is designed, when the surface of the filter screen is covered with many impurities, the filter screen is rotated to a certain angle towards the connecting pipe, the limitation on the cleaning brush is removed, the water flow in the pump body drives the turbine to rotate and then drives the cleaning brush to rotate to clean the impurities on the surface of the filter screen, the impurities flow out through the connecting pipe and the discharge pipe, the impurities on the surface of the filter screen are automatically cleaned, manual opening of the BB2 pump is not needed for cleaning, and the cleaning effect and cleaning efficiency are improved.

[0019] (2) The utility model discloses a plugging piece, and the rubber plug ball in the plugging piece blocks one end of the connecting pipe in the inner wall of the spherical shell in the normal use process of the BB2 pump, avoids the foreign matter from entering the inside of the connecting pipe through one end of the connecting pipe in the inner wall of the spherical shell, avoids the liquid in the BB2 from entering the connecting pipe and causing waste, and facilitates use. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the structure schematic diagram of the utility model;

[0021] Figure 2 It is the right view structure schematic diagram of the utility model;

[0022] Figure 3 It is the import and spherical shell left view structure schematic diagram of the utility model;

[0023] Figure 4 It is the import right view structure schematic diagram of the utility model;

[0024] Figure 5 It is the import left view structure schematic diagram of the utility model;

[0025] Figure 6 It is the filter screen structure schematic diagram of the utility model;

[0026] Figure 7 It is the overhead structure schematic diagram of the utility model;

[0027] Figure 8 It is the concentrated pipe and tooth ring structure schematic diagram of the utility model;

[0028] Figure 9 It is the rubber plug ball structure schematic diagram of the utility model;

[0029] Figure 10 It is the connecting pipe structure schematic diagram of the utility model;

[0030] Figure 11 It is the connecting pipe structure schematic diagram of the utility model;

[0031] Figure 12 It is the pump body structure schematic diagram of the utility model;

[0032] In the figure: 100, pump body; 101, inlet; 102, outlet; 103, pump shaft; 104, sliding bearing; 200, filter screen; 201, spherical shell; 202, cleaning brush; 203, shell; 204, driving motor; 205, rotating rod; 206, gear ring; 207, concentration pipe; 208, gear; 209, discharge pipe; 210, vertical rod; 211, arc block; 212, limiting plate; 214, connecting pipe; 215, baffle disc; 216, fixed disc; 217, rotating column; 218, rubber ring; 219, turbine; 221, limiting plate; 300, rubber plug ball; 301, small rubber bead; 302, elastic rope; 303, convex plate; 304, ring frame; 305, moving column; 306, large rubber bead. DETAILED DESCRIPTION

[0033] The technical solutions of the present application will be described below in conjunction with the embodiments, obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0034] Reference Figures 1-12 The present application provides a technical solution: a BB2 pump with a cleaning structure, comprising a pump body 100, an impeller installed inside the pump body 100, and an inlet 101 and an outlet 102 installed on the top of the pump body 100, the inside of the inlet 101 is provided with a filter screen 200, and the inside of the inlet 101 is also provided with a cleaning mechanism, the cleaning mechanism comprises a cleaning assembly and a discharge assembly;

[0035] The discharge assembly comprises a spherical shell 201 installed on the inner wall of the inlet 101 and a rotating rod 205 fixed inside the filter screen 200, both ends of the rotating rod 205 pass through the inside of the inlet 101 and extend to the outside of the inlet 101, a driving motor 204 is fixedly arranged outside the inlet 101, the driving motor 204 can drive the filter screen 200 and the rotating rod 205 to rotate, the working end of the driving motor 204 is fixedly connected with one end of the rotating rod 205, and the other end of the rotating rod 205 is fixedly provided with a gear 208;

[0036] Two arc blocks 211 are fixedly arranged outside the inlet 101, the inside of the arc block 211 is slidably provided with a gear ring 206, the gear 208 is engaged with the gear ring 206, and the inner wall of the spherical shell 201 is fixedly provided with a limiting plate 212, when the filter screen 200 is inclined, it stops at the limiting plate 212, and the limiting plate 212 is limited;

[0037] The inside of the spherical shell 201 is fixedly provided with a plurality of groups of connecting pipes 214, one end of the connecting pipe 214 extends to the outside of the inlet 101, the other end of the connecting pipe 214 is fixedly provided with a collecting pipe 207, the outside of the collecting pipe 207 is fixedly provided with a discharge pipe 209, the collecting pipe 207 and the discharge pipe 209 are in communication;

[0038] The inside of the connecting pipe 214 is provided with an opening and closing piece, the opening and closing piece comprises a rotating column 217 rotatably arranged on the connecting pipe 214, the bottom of the rotating column 217 is fixedly provided with a blocking disc 215, the inside of the connecting pipe 214 can be in a closed state by rotating and closing the blocking disc 215, so as to avoid waste caused by liquid being discharged outward through the connecting pipe 214 when cleaning is not performed, the inside of the connecting pipe 214 can be in an open state when the blocking disc 215 is opened, so as to facilitate the flow of water and impurities to be discharged, the outside of the rotating column 217 is fixedly provided with a fixed disc 216, the outer wall of the fixed disc 216 is fixedly provided with a rubber ring 218, and the outer wall of the rubber ring 218 is in contact with the inner wall of the tooth ring 206.

[0039] The cleaning assembly comprises a vertical rod 210 rotatably arranged on the filter screen 200, the outer wall of the vertical rod 210 is respectively provided with the shell 203 and a turbine 219, the turbine 219 is rotated by the impact of water flow, so that water can be converted into mechanical energy;

[0040] The outer wall of the vertical rod 210 is fixedly provided with a cleaning brush 202, the rotating cleaning brush 202 can clean the impurities attached to the surface of the filter screen 200, the impurities attached to the surface of the filter screen 200 can be cleaned in the non-stop state of the BB2 pump, the inner wall of the spherical shell 201 is fixedly provided with two groups of limiting plates 221, one end of the cleaning brush 202 extends between the two groups of limiting plates 221.

[0041] The cleaning mechanism is designed, when the surface of the filter screen 200 is covered with many impurities in use, the filter screen 200 is rotated to a certain angle in the direction of the connecting pipe 214, the restriction on the cleaning brush 202 is released, at this time, the water flow entering the pump body 100 through the inlet 101 drives the turbine 219 to rotate, thereby driving the cleaning brush 202 to rotate and cleaning the impurities covered on the surface of the filter screen 200, then the impurities flow out outward through the connecting pipe 214 and the discharge pipe 209, the impurities on the surface of the filter screen 200 are automatically cleaned, manual opening of the BB2 pump is not required for cleaning, and the cleaning effect and cleaning efficiency are improved.

[0042] In use, the liquid from outside enters the inside of the pump body 100 through the inlet 101, and then is discharged outwardly from the outlet 102. When cleaning the impurities on the filter screen 200, the driving motor 204 is started, the working end of the driving motor 204 drives the rotating rod 205 to rotate, and then drives the filter screen 200 to rotate. At this time, the filter screen 200 will rotate and tilt towards the connecting pipe 214 and the limiting plate 212. When the rotating rod 205 rotates, the gear 208 will rotate, the gear 208 drives the gear ring 206 to slide in the inside of the arc block 211. At this time, the gear ring 206 rotates to drive the rubber ring 218 in contact with it to rotate, the rubber ring 218 drives the fixed disc 216 and the rotating column 217 to rotate. At this time, the rotating rotating column 217 will drive the baffle disc 215 in the connecting pipe 214 to rotate. At this time, the baffle disc 215 rotates and opens. Finally, the bottom of the filter screen 200 will contact the limiting plate 212, and the limiting plate 212 will limit the tilting filter screen 200. When the filter screen 200 rotates and tilts, the upper cleaning brush 202 will tilt with it. Then, when it tilts to a certain angle, the end of the cleaning brush 202 will be separated from the space between the two limiting plates 221, and the limiting of the limiting plates 221 to the cleaning brush 202 will be released. Then, when the water passes through the inlet 101 and the filter screen 200, the water flow will pass through the turbine 219. The turbine 219 is impacted by the water flow and starts to rotate, thereby driving the rotating column 217 to rotate, and the rotating column 217 drives the cleaning brush 202 to rotate. Then, the cleaning brush 202 starts to rotate to clean the impurities attached to the surface of the filter screen 200. The cleaned impurities and water will enter the connecting pipe 214, and then be discharged outwardly through the external concentrating pipe 207 and the discharge pipe 209. The impurities on the filter screen 200 are removed. When the removal is completed, the filter screen 200 can be restored to the original position according to the above reverse principle.

[0043] The other end of the connecting pipe 214 is provided with a plug, the plug comprises a rubber plug ball 300 arranged at the other end of the connecting pipe 214 and a ring frame 304 fixed in the inside of the connecting pipe 214. The rubber plug ball 300 can plug one end of the connecting pipe 214. The inside of the ring frame 304 is slidably provided with a moving column 305. One end of the moving column 305 is fixedly provided with a small rubber bead 301, and the other end of the moving column 305 is fixedly provided with a large rubber bead 306. The moving column 305 can move in the ring frame 304.

[0044] The outer wall of the ring frame 304 is fixedly provided with two groups of protruding plates 303. The protruding plates 303 and the rubber plug ball 300 are fixedly provided with elastic ropes 302. The outer wall of the small rubber bead 301 is in contact with the rubber plug ball 300, and the outer wall of the large rubber bead 306 is in contact with the baffle disc 215.

[0045] The utility model discloses a plugging piece, in the normal use process of BB2 pump, through the rubber plug ball 300 in the plugging piece, the one end of connecting pipe 214 in the inner wall of spherical shell 201 is plugged, avoids the foreign matter through the one end of connecting pipe 214 in the inner wall of spherical shell 201 to enter the inside of connecting pipe 214 to cause the inside to produce the situation of plugging, also can avoid the liquid in BB2 to enter the inside of connecting pipe 214 to cause the probability of producing waste, convenient to use.

[0046] In use, when the rotating column 217 rotates and drives the baffle disc 215 to rotate and open, the large rubber beads 306 in contact with the baffle disc 215 are pushed to the direction close to the baffle disc 215, the moving column 305 is driven to move, the moving column 305 drives the small rubber beads 301 to move, then the rubber plug ball 300 is pushed outwards through the small rubber beads 301, at this time, the elastic rope 302 starts to stretch, then when the rubber plug ball 300 is pushed outwards and is on the inner wall of the spherical shell 201, the bottom of the inclined filter screen 200 contacts and pushes the rubber plug ball 300 downwards, so that the rubber plug ball 300 is separated from the one end close to the spherical shell 201 in the connecting pipe 214, at this time, the impurities brushed out by the cleaning brush 202 on the filter screen 200 flow outwards through the connecting pipe 214, when cleaning is completed, the above principle is reversed, at this time, the filter screen 200 and the baffle disc 215 start to reset, then the rubber plug ball 300 starts to move upwards and enters the one end close to the spherical shell 201 in the connecting pipe 214, at this time, the elastic rope 302 resets and plugs the one end close to the spherical shell 201 in the connecting pipe 214, to prevent some foreign matters from entering the connecting pipe 214 and causing blockage, also to avoid the probability of waste caused by the liquid entering the connecting pipe 214, convenient to use.

[0047] In the embodiment, the pump body 100 is internally provided with a pump shaft 103 and a sliding bearing 104, the sliding bearing 104 is located between the pump shaft 103 and the inner wall of the pump body 100, and the sliding bearing 104 can improve the carrying capacity of the whole BB2 pump.

[0048] The above embodiments are only used to illustrate the technical method of the utility model and are not limited, although the utility model is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical method of the utility model can be modified or replaced equivalently without departing from the spirit and scope of the technical method of the utility model.

Claims

1. A BB2 pump with a cleaning structure, comprising a pump body (100), an impeller installed inside the pump body (100), and an inlet (101) and an outlet (102) installed on the top of the pump body (100), wherein a filter screen (200) is provided inside the inlet (101), characterized in that, The interior of the inlet (101) is also equipped with a cleaning mechanism, which includes: A cleaning component is mounted on the filter (200); The discharge assembly is located inside the pump body (100).

2. The BB2 pump with a cleaning structure according to claim 1, characterized in that: The discharge assembly includes a spherical shell (201) installed on the inner wall of the inlet (101) and a rotating rod (205) fixed inside the filter screen (200). Both ends of the rotating rod (205) pass through the interior of the inlet (101) and extend to the outside of the inlet (101). A drive motor (204) is fixedly installed on the outside of the inlet (101). The working end of the drive motor (204) is fixedly connected to one end of the rotating rod (205). A gear (208) is fixedly installed on the other end of the rotating rod (205).

3. A BB2 pump with a cleaning structure according to claim 2, characterized in that: Two sets of arc-shaped blocks (211) are fixedly installed on the outside of the inlet (101). A toothed ring (206) is slidably installed inside the arc-shaped block (211). The gear (208) meshes with the toothed ring (206). A limit plate (212) is fixedly installed on the inner wall of the spherical shell (201).

4. A BB2 pump with a cleaning structure according to claim 3, characterized in that: Multiple sets of connecting pipes (214) are fixedly installed inside the spherical shell (201). One end of the connecting pipe (214) extends to the outside of the inlet (101), and the other end of the connecting pipe (214) is fixedly installed with a central pipe (207). A discharge pipe (209) is fixedly installed outside the central pipe (207), and the central pipe (207) is connected to the discharge pipe (209).

5. A BB2 pump with a cleaning structure according to claim 4, characterized in that: The connecting pipe (214) is provided with an opening and closing component, which includes a rotating column (217) rotatably mounted on the connecting pipe (214). A baffle (215) is fixedly mounted at the bottom of the rotating column (217), and a fixed plate (216) is fixedly mounted on the outside of the rotating column (217). A rubber ring (218) is fixedly mounted on the outer wall of the fixed plate (216).

6. A BB2 pump with a cleaning structure according to claim 2, characterized in that: The cleaning assembly includes a vertical rod (210) rotatably mounted on a filter screen (200), and the outside of the vertical rod (210) is provided with a housing (203) and a turbine (219).

7. A BB2 pump with a cleaning structure according to claim 6, characterized in that: A cleaning brush (202) is fixedly installed on the outer wall of the vertical rod (210), and two sets of limiting plates (221) are fixedly installed on the inner wall of the spherical shell (201). The other end of the cleaning brush (202) extends between the two sets of limiting plates (221).

8. A BB2 pump with a cleaning structure according to claim 4, characterized in that: A plug is provided at one end of the connecting pipe (214) extending to the outside of the inlet (101). The plug includes a rubber plug ball (300) at one end of the connecting pipe (214) and a ring frame (304) fixed inside the connecting pipe (214). A movable column (305) is slidably provided inside the ring frame (304). A small rubber bead (301) is fixedly provided at one end of the movable column (305), and a large rubber bead (306) is fixedly provided at the other end of the movable column (305).

9. A BB2 pump with a cleaning structure according to claim 8, characterized in that: Two sets of protruding plates (303) are fixedly installed on the outer wall of the ring frame (304). A tension rope (302) is fixedly installed between the protruding plate (303) and the rubber ball (300). The outer wall of the small rubber bead (301) is in contact with the rubber ball (300), and the outer wall of the large rubber bead (306) is in contact with the baffle (215).

10. A BB2 pump with a cleaning structure according to claim 1, characterized in that: The pump body (100) is equipped with a pump shaft (103) and a sliding bearing (104) inside, and the sliding bearing (104) is located between the pump shaft (103) and the inner wall of the pump body (100).

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