Axial flow pump for chemical industry

Abstract

The invention belongs to the technical field of pumps, and particularly discloses a chemical axial flow pump which comprises a pump body and a controller, a filtering mechanism is arranged at the bottom of the pump body, and a sewage draining assembly is arranged on the surface of the filtering mechanism; wherein the filtering mechanism comprises a mounting pipe communicated with the liquid inlet end of the pump body; by arranging the filtering mechanism, the interior of the mounting pipe can be divided into a leading-in area, a sewage discharging area and a leading-out area, and sewage and impurities are intercepted in the sewage discharging area through filtering holes formed in the surface of a connecting cylinder to be independently stored; when the internal pressure of the sewage discharging area is too large, the hydraulic sensor, the controller and the sewage discharging assembly can be matched to achieve the purposes of pressure relief in the sewage discharging area and independent discharging of sewage synchronously, self-cleaning of the filtering holes can be achieved in the sewage discharging process, manual operation of workers is not needed, the automation degree is high, and the working efficiency is high. And the situation that equipment is damaged due to overpressure caused by untimely cleaning is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of pumps and specifically discloses an axial flow pump for chemical industry. Background Art

[0002] An axial flow pump is a non-variable displacement pump. As a vane pump, its working principle relies on the force exerted by the rotating impeller blades on the liquid to transport the liquid along the axial direction. Axial flow pumps are characterized by high flow, low head, and high specific speed, making them suitable for scenarios with high flow and low head. A search revealed a Chinese patent application for an axial flow pump for chemical industry (publication number: CN118030626B). This patent describes a filter plate installed inside a water inlet pipe. When the sieve holes on one side of the filter plate are clogged with silt, the filter plate is rotated 180°, with the side with the previously blocked sieve holes becoming the backwater side and the side not clogged with silt becoming the waterside. This allows water to easily remove the silt from the sieve holes as it flows through them. Repeated flipping of the filter plate allows the silt in the sieve holes to be removed in a timely manner, guided by the direction of the water flow. However, in actual use, there are the following problems: First, the sludge will still be transported to the next treatment link through the pump body after backwashing, which undoubtedly increases the difficulty of subsequent treatment; second, the staff needs to flip the sieve plate regularly, and if the flip is not timely, it is easy to cause blockage and excessive pressure, resulting in damage to the conveying pipeline. Therefore, technical personnel in this field have proposed an axial flow pump for chemical use to solve the above problems. Summary of the Invention

[0003] In view of this, the technical problem to be solved by the present invention is to provide an axial flow pump for chemical industry to solve the problem that the dirt and impurities filtered by the prior art are not conducive to separate separately.

[0004] To achieve the above objectives, the present invention provides an axial flow pump for chemical industry, comprising a pump body and a controller, wherein a filter mechanism is provided at the bottom of the pump body, and a sewage discharge assembly is provided on the surface of the filter mechanism; In which, the filtering mechanism includes a mounting tube connected to the liquid inlet end of the pump body, and the inner wall of the mounting tube is fixedly connected with a second partition and a first partition in sequence from top to bottom, the second partition and the first partition are both inclined, and a sewage discharge area is formed between the second partition and the first partition, an outlet area is formed between the top of the second partition and the interior of the mounting tube, and an inlet area is formed between the bottom of the first partition and the interior of the mounting tube, a water inlet component is provided on the surface of the mounting tube, a processing component is provided on the surface of the second partition, and a hydraulic sensor located inside the sewage discharge area is embedded and installed on the surface of the second partition.

[0005] In the above technical solution, preferably, the water inlet assembly includes an inlet shell disposed on the surface of the installation pipe and communicating with the introduction area. A mounting shell communicating with the sewage discharge area is fixedly connected to the surface of the installation pipe. The other end of the inlet shell communicates with the inside of the mounting shell. A scraper is fixedly connected to the inside of the mounting shell. A rotating block is rotatably connected to the inner wall of the mounting shell away from the installation pipe. A connecting cylinder is fixedly connected to the other side of the rotating block. The surface of the connecting cylinder is provided with uniformly distributed filter holes. The other end of the connecting cylinder sequentially penetrates through the installation pipe and the second partition and communicates with the discharge area. The other end of the connecting cylinder is rotatably connected to the inner wall of the second partition.

[0006] In the above technical solution, preferably, a rotating ring is rotatably connected to the inner wall of the mounting shell. The connecting cylinder is located inside the rotating ring. A pushing plate is fixedly connected to the inside of the rotating ring. Uniformly distributed driving blades are fixedly connected to the outside of the rotating ring.

[0007] In the above technical solution, preferably, a connecting pipe is disposed inside the connecting cylinder. One end of the connecting pipe is fixedly connected to a fixing rod fixedly connected to the inner wall of the rotating block. The other end of the connecting pipe sequentially penetrates through the connecting cylinder and the installation pipe.

[0008] In the above technical solution, preferably, a connecting cavity communicating with the connecting pipe is provided inside the fixing rod. A through hole is provided on the surface of the rotating block. An adjusting cavity communicating with the through hole is provided inside the rotating block. A through hole communicating with the connecting cavity is provided on the inner wall of the adjusting cavity. A sliding plate is slidably connected to the inner wall of the adjusting cavity. An adjusting rod is fixedly connected to the side of the sliding plate away from the through hole. A first spring is fixedly connected between the surface of the sliding plate and the inner wall of the adjusting cavity.

[0009] In the above technical solution, preferably, the treatment assembly includes a mounting block fixedly connected to the side of the second partition away from the sewage discharge area. One end of the mounting block extends to the opening of the connecting cylinder away from the mounting shell. A connecting rod extending into the connecting cylinder is fixedly connected to the surface of the mounting block. Uniformly distributed ejector rods corresponding to the filter holes are provided on the surface of the connecting rod. A sliding rod is provided inside the ejector rod. The other end of the sliding rod penetrates through the ejector rod and is fixedly connected to the surface of the connecting rod. A fixing plate slidably connected to the inner wall of the ejector rod is fixedly connected to the other end of the sliding rod. A second spring is fixedly connected between the surface of the fixing plate and the inner wall of the ejector rod.

[0010] In the above technical solution, preferably, the treatment assembly further includes a plurality of uniformly distributed sliding grooves provided inside the connecting cylinder. The filter holes communicate with the adjacent sliding grooves. Two symmetrically distributed guiding blocks are fixedly connected to the inner wall of the filter holes.

[0011] In the above technical solution, preferably, the sewage discharge assembly includes a sewage discharge pipe disposed on the surface of the installation pipe and communicating with the sewage discharge area. A fixing cylinder is provided on the surface of the sewage discharge pipe. Two sewage discharge holes for communicating the inside of the fixing cylinder with the sewage discharge pipe are provided on the surface of the fixing cylinder. A counterweight block is slidably connected to the inner wall of the fixing cylinder. An electromagnet is provided on the inner top wall of the fixing cylinder. The counterweight block is a ferromagnetic metal material component.

[0012] In the above technical solution, preferably, a liquid storage cylinder is fixedly connected to the top of the fixing cylinder. A pressing rod is fixedly connected to the top of the counterweight block. The upper end of the pressing rod penetrates out of the fixing cylinder and is slidably connected to the inner wall of the liquid storage cylinder. The inside of the liquid storage cylinder is filled with hydraulic oil.

[0013] In the above technical solution, preferably, the sewage discharge assembly further includes a fixing block fixedly connected to the surface of the installation pipe. A rotating disk is rotatably connected inside the fixing block. An introduction cavity is provided inside the rotating disk. Connecting holes evenly distributed and communicating with the introduction cavity are provided on the surface of the rotating disk. A communication cavity communicating with the connecting holes is provided inside the fixing block. A conduit is connected to the top of the liquid storage cylinder. The other end of the conduit is connected to the communication cavity. One end of the connecting pipe is fixedly connected to the surface of the rotating disk and communicates with the introduction cavity.

[0014] Compared with the prior art, the present invention has the following beneficial effects: By providing a filtering mechanism, the inside of the installation pipe can be divided into an introduction area, a sewage discharge area, and an export area. The dirt and impurities are intercepted inside the sewage discharge area and stored separately by the filter holes provided on the surface of the connecting cylinder. When the pressure inside the sewage discharge area is too high, it can cooperate with the hydraulic sensor, the controller, and the sewage discharge assembly to achieve pressure relief inside the sewage discharge area and simultaneously discharge the dirt independently. And it can realize self-cleaning of the filter holes during the process of discharging the dirt, without manual operation by the staff, with high automation, reducing the occurrence of overpressure damage to the equipment caused by untimely cleaning.

[0015] By providing a sewage discharge assembly, it can cooperate with the treatment assembly to clean the filter holes under the action of the sewage discharge assembly, achieve the effect of dredging the filter holes with the ejector rod, and cooperate with the scraper misaligned with it to scrape the dirt and impurities adhered to the surface of the connecting cylinder, strengthening the cleaning effect on the surface of the connecting cylinder, making the filter holes well dredged and improving the service life of the device.

[0016] Utilize the mutual cooperation of the filtering mechanism and the sewage discharge assembly to realize automatic cleaning of the filtered dirt and impurities, reduce the number of shutdown maintenance times, and improve the automation degree of the treatment process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the present invention; Figure 2 This is a schematic diagram of the separation of the installation pipe and the pump body of the present invention; Figure 3 This is a schematic diagram of the connection between the water inlet assembly, the sewage pipe and the installation pipe of the present invention; Figure 4 This is a schematic diagram of the connection between the introduction shell and the installation shell of the present invention; Figure 5 It is a partial cross-sectional schematic diagram of the rotating block and the connecting cylinder of the present invention; Figure 6 for Figure 5 A magnified view of middle A; Figure 7 for Figure 5 Enlarged view of middle B; Figure 8 It is a partial schematic diagram of the sewage discharge assembly of the present invention; Figure 9 for Figure 8 Enlarged view of middle C; Figure 10 It is a partial schematic diagram of the processing component of the present invention.

[0018] Figure: 1. Pump body; 2. Filter mechanism; 201. Mounting pipe; 202. First baffle; 203. Second baffle; 204. Hydraulic sensor; 21. Water inlet assembly; 2101. Mounting shell; 2102. Inlet shell; 2103. Scraper; 2104. Connecting cylinder; 2105. Rotating block; 2106. Filter hole; 2107. Connecting pipe; 2108. Rotating ring; 2109. Push plate; 2110. Driving blade; 2111. Connecting chamber; 2112. Through hole; 2113. Adjusting chamber; 2114. Slide plate; 2115. Adjusting rod; 2116 , first spring; 22, processing assembly; 2201, slide groove; 2202, guide block; 2203, mounting block; 2204, connecting rod; 2205, second spring; 2206, push rod; 2207, sliding rod; 2208, fixed plate; 3, sewage discharge assembly; 301, fixed block; 302, fixed cylinder; 303, electromagnet; 304, extrusion rod; 305, liquid storage cylinder; 306, conduit; 307, counterweight; 308, rotating disk; 309, connecting cavity; 310, connecting hole; 311, inlet cavity; 312, sewage pipe; 4, controller. DETAILED DESCRIPTION

[0019] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] In the following description, many specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited by the limitations of the specific embodiments disclosed below.

[0021] As Figures 1 - 10 shown, an axial flow pump for chemical industry includes a pump body 1 and a controller 4. A filtering mechanism 2 is provided at the bottom of the pump body 1, and a sewage discharge assembly 3 is provided on the surface of the filtering mechanism 2. Among them, the filtering mechanism 2 includes an installation pipe 201 connected to the liquid inlet end of the pump body 1. A second partition plate 203 and a first partition plate 202 are fixedly connected to the inner wall of the installation pipe 201 in sequence from top to bottom. Both the second partition plate 203 and the first partition plate 202 are inclined. A sewage discharge area is formed between the second partition plate 203 and the first partition plate 202. A lead-out area is formed between the top of the second partition plate 203 and the inside of the installation pipe 201. An introduction area is formed between the bottom of the first partition plate 202 and the inside of the installation pipe 201. An inlet water assembly 21 is provided on the surface of the installation pipe 201. A treatment assembly 22 is provided on the surface of the second partition plate 203. A hydraulic sensor 204 embedded in the surface of the second partition plate 203 is located inside the sewage discharge area. The hydraulic sensor 204 can detect the water pressure inside the sewage discharge area and transmit a signal to the controller 4 when the water pressure exceeds a preset value. Among them, the controller 4 is a PLC programmable controller, and the specific model should be selected according to the actual situation. Through the commands preset on the PLC programmable controller, it can execute according to the preset commands after receiving the signal transmitted by the hydraulic sensor 204.

[0022] As Figures 1 - 10 shown, the inlet water assembly 21 includes an introduction shell 2102 provided on the surface of the installation pipe 201 and connected to the introduction area. A mounting shell 2101 connected to the sewage discharge area is fixedly connected to the surface of the installation pipe 201. The other end of the introduction shell 2102 is connected to the inside of the mounting shell 2101. A scraping plate 2103 is fixedly connected to the inside of the mounting shell 2101. A rotating block 2105 is rotatably connected to the inner wall of the mounting shell 2101 away from the installation pipe 201. The other side of the rotating block 210 five is fixedly connected to a connecting cylinder 2104. Uniformly distributed filter holes 2106 are formed on the surface of the connecting cylinder 2104. The other end of the connecting cylinder 2104 sequentially penetrates through the installation pipe 201 and the second partition plate 203 and is connected to the lead-out area. The other end of the connecting cylinder 2104 is rotatably connected to the inner wall of the second partition plate 203.

[0023] When the pump body 1 is started, it can introduce the fluid through the introduction area, and under the action of the introduction shell 2102, it is introduced into the interior of the installation shell 2101. In this process, due to the setting of the filter hole 2106 on the connecting cylinder 2104, dirt and impurities can be intercepted, so that the fluid passes through the filter hole 2106 and is introduced into the outlet area through the connecting cylinder 2104 and is discharged through the liquid outlet end of the pump body 1 after being pumped by the pump body 1. In this process, the intercepted dirt and impurities can be pushed by the fluid to the internal storage of the sewage discharge area. As the dirt and impurities in the sewage discharge area increase and the impurities on the surface of the connecting cylinder 2104 increase, the passing rate of the filter hole 2106 for the conveyed fluid can be gradually affected. , thereby increasing the pressure inside the sewage discharge area. When the hydraulic sensor 204 detects that the pressure exceeds the preset value, it transmits a signal to the controller 4, and under the action of the controller 4, the sewage discharge component 3 is started to cooperate with the processing component 22 to realize the cleaning of the surface of the connecting cylinder 2104. At the same time, it can realize the discharge of the sewage collected inside the sewage discharge area. In the process of the operation of the processing component 22 and the sewage discharge component 3, it can cooperate with the scraper 2103 to enhance the cleaning effect of the impurities and dirt adhering to the surface of the connecting cylinder 2104. There is no need for staff to stop the machine for processing. At the same time, it avoids the situation that the traditional filtering structure is located below the water level and is inconvenient for cleaning. It is easy to operate and has a high degree of automation.

[0024] The fluid introduced through the inlet shell 2102 can impact the surface of the connecting tube 2104, and one end of the connecting tube 2104 is rotatably connected to the inner wall of the second partition 203 and the other end is rotatably connected to the inner wall of the mounting shell 2101 through the rotating block 2105, which will produce a slight rotation. At this time, the scraper 2103 can scrape off the dirt and impurities on the surface of the connecting tube 2104 to reduce the impact of adhesion on the passage of the fluid. Since the connection point between the inlet shell 2102 and the mounting shell 2101 is located at the center of the mounting shell 2101, the rotation caused by the impact on the connecting tube 2104 is relatively slight and will not affect the normal filtering effect.

[0025] like Figures 1 - 10 As shown, the inner wall of the mounting shell 2101 is rotatably connected to a rotating ring 2108, the connecting cylinder 2104 is located on the inner side of the rotating ring 2108, the inner side of the rotating ring 2108 is fixedly connected to a push plate 2109, and the outer side of the rotating ring 2108 is fixedly connected to evenly distributed driving blades 2110.

[0026] A connecting tube 2107 is provided inside the connecting tube 2104 , one end of the connecting tube 2107 is fixedly connected to a fixing rod fixedly connected to the inner wall of the rotating block 2105 , and the other end of the connecting tube 2107 passes through the connecting tube 2104 and the mounting tube 201 in sequence.

[0027] A connection cavity 2111 communicating with the connecting pipe 2107 is provided inside the fixed rod. A through hole is provided on the surface of the rotating block 2105, and an adjusting cavity 2113 communicating with the through hole is provided inside the rotating block 2105. A through hole 2112 communicating with the connection cavity 2111 is provided on the inner wall of the adjusting cavity 2113. A sliding plate 2114 is slidably connected to the inner wall of the adjusting cavity 2113. One side of the sliding plate 2114 away from the through hole 2112 is fixedly connected to an adjusting rod 2115. A first spring 2116 is fixedly connected between the surface of the sliding plate 2114 and the inner wall of the adjusting cavity 2113.

[0028] The driving blades 2110 provided on the surface of the rotating ring 2108 can be pushed by the fluid introduced into the introduction shell 2102 to rotate the rotating ring 2108. During this process, the push plate 2109 can be driven to rotate synchronously. Under normal conditions, due to the arrangement of the first spring 2116, the position of the sliding plate 2114 can be limited, so that the adjusting rod 2115 cannot pass through the through hole and enter the inner side between the rotating ring 2108 and the rotating block 2105. At this time, the rotation of the rotating ring 2108 driving the rotation of the push plate 2109 will not affect the position of the rotating block 2105.

[0029] As Figures 1 - 10 shown, the processing assembly 22 includes a mounting block 2203 fixedly connected to the side of the second partition plate 203 away from the sewage discharge area. One end of the mounting block 2203 extends to the opening of the connecting cylinder 2104 away from the end of the mounting shell 2101. A connecting rod 2204 extending into the connecting cylinder 2104 is fixedly connected to the surface of the mounting block 2203. A thimble 2206 evenly distributed and corresponding to the filter holes 2106 is provided on the surface of the connecting rod 2204. A sliding rod 2207 is provided inside the thimble 2206. The other end of the sliding rod 2207 penetrates through the thimble 2206 and is fixedly connected to the surface of the connecting rod 2204. A fixing plate 2208 slidably connected to the inner wall of the thimble 2206 is fixedly connected to the other end of the sliding rod 2207. A second spring 2205 is fixedly connected between the surface of the fixing plate 2208 and the inner wall of the thimble 2206.

[0030] The processing assembly 22 further includes a plurality of chutes 2201 evenly distributed and provided on the inner side of the connecting cylinder 2104. The filter holes 2106 communicate with the adjacent chutes 2201. Two symmetrically distributed guide blocks 2202 are fixedly connected to the inner wall of the filter holes 2106.

[0031] The arrangement of the second spring 2205 can keep the position of the thimble 2206 so that it can be inserted into the filter hole 2106. When the connecting cylinder 2104 rotates, the end of the thimble 2206 can be squeezed by the guide block 2202, so that it slides along the surface of the sliding rod 2207 and stretches the second spring 2205 (see Figure 10In the tensile state of the second spring 2205), at this time, the sliding rod 2207 can slide along the inner wall of the chute 2201 without affecting the rotation of the connecting cylinder 2104. Until it moves to the next filter hole 2106, it can drive the reset under the action of the second spring 2205 and insert into the interior of the filter hole 2106 to dredge the filter hole 2106. Cooperating with the scraper 2103 can effectively improve the cleaning effect of the filter hole 2106; Specifically, the included angle between the scraper 2103 and the connecting rod 2204 is 30 degrees, which can effectively prevent the impurities dredged from being blocked by the scraper 2103 and affecting the discharge of the dredged impurities.

[0032] As Figures 1 - 10 shown, the sewage discharge assembly 3 includes a sewage discharge pipe 312 provided on the surface of the installation pipe 201 and communicating with the sewage discharge area. The surface of the sewage discharge pipe 312 is provided with a fixed cylinder 302. The surface of the fixed cylinder 302 is provided with two sewage discharge holes for communicating the inside of the fixed cylinder 302 with the sewage discharge pipe 312. A counterweight 307 is slidably connected to the inner wall of the fixed cylinder 302. An electromagnet 303 is provided on the inner top wall of the fixed cylinder 302. The counterweight 307 is a ferromagnetic metal material component.

[0033] The top of the fixed cylinder 302 is fixedly connected with a liquid storage cylinder 305. The top of the counterweight 307 is fixedly connected with a pressing rod 304. The upper end of the pressing rod 304 penetrates out of the fixed cylinder 302 and is slidably connected to the inner wall of the liquid storage cylinder 305. The inside of the liquid storage cylinder 305 is filled with hydraulic oil.

[0034] The sewage discharge assembly 3 further includes a fixed block 301 fixedly connected to the surface of the installation pipe 201. A rotating disk 308 is rotatably connected to the inside of the fixed block 301. An introduction cavity 311 is provided inside the rotating disk 308. The surface of the rotating disk 308 is provided with uniformly distributed connecting holes 310 communicating with the introduction cavity 311. A communication cavity 309 communicating with the connecting holes 310 is provided inside the fixed block 301. The top of the liquid storage cylinder 305 is communicated with a conduit 306. The other end of the conduit 306 is communicated with the communication cavity 309. One end of the connecting pipe 2107 is fixedly connected to the surface of the rotating disk 308 and communicated with the introduction cavity 311.

[0035] When the hydraulic sensor 204 detects that the internal pressure of the sewage discharge area exceeds the preset value, it transmits a signal to the controller 4. The controller 4 activates the electromagnet 303 to make the electromagnet 303 adsorb the counterweight 307. At this time, the counterweight 307 is adsorbed and moves upward along the inner wall of the fixed cylinder 302, so as not to block the two sewage discharge holes. Furthermore, the dirt and impurities inside the sewage discharge area can be pushed by the fluid through the sewage discharge pipe 312 to discharge it, reducing the accumulation of dirt and impurities inside the sewage discharge area to facilitate reducing the internal pressure of the sewage discharge area. After 5 minutes of sewage discharge, the electromagnet 303 is closed, and the counterweight 307 resets under the action of gravity to re-seal the communication state of the two sewage discharge holes, so that the fluid no longer discharges through the sewage discharge pipe 312; At the same time, during the process of the electromagnet 303 adsorbing the counterweight 307 and moving upward, it can drive the extrusion rod 304 to extrude the hydraulic oil stored inside the liquid storage cylinder 305, so that the hydraulic oil is injected into the inside of the connecting pipe 2107 through the conduit 306, the communication cavity 309 and the connecting hole 310, and the hydraulic oil is introduced into the inside of the adjustment cavity 2113 through the through hole 2112 through the connection cavity 2111, achieving the effect of pushing the slide plate 2114 to overcome the spring of the first spring 2116 and eject the adjustment rod 2115 from the inside of the adjustment cavity 2113 and insert it between the rotating ring 2108 and the rotating block 2105. Thus, during the process of the fluid pushing the rotating ring 2108 to rotate, the push plate 2109 can be used to push the adjustment rod 2115 to drive the rotating block 2105 to rotate, cooperating with the processing component 22 and the scraper 2103 to improve the cleaning effect of the filter holes 2106, so that the dirt cleaned during the sewage discharge process can be discharged by the fluid, achieving the purpose of self-cleaning, without manual cleaning by staff, and the operation is simple.

[0036] Working principle: When the pump body 1 starts, it can introduce the fluid through the introduction area, and under the action of the introduction shell 2102, it introduces it into the inside of the installation shell 2101. During this process, due to the setting of the filter holes 2106 on the connecting cylinder 2104, dirt and impurities can be intercepted, so that the fluid passes through the filter holes 2106 and is introduced into the export area through the connecting cylinder 2104 and is discharged through the liquid outlet end of the pump body 1 by the pumping of the pump body 1. During this process, the intercepted dirt and impurities can be pushed by the fluid into the inside of the sewage discharge area for storage. As the dirt and impurities inside the sewage discharge area increase and the impurities on the surface of the connecting cylinder 2104 increase, it can gradually affect the passing rate of the filter holes 2106 for the transported fluid, thereby increasing the internal pressure of the sewage discharge area. When the hydraulic sensor 204 detects that the pressure exceeds the preset value, it transmits a signal to the controller 4, and under the action of the controller 4, the sewage discharge component 3 is activated to cooperate with the processing component 22 to clean the surface of the connecting cylinder 2104, and at the same time, it can discharge the dirt collected inside the sewage discharge area, and during the process of the processing component 22 and the sewage discharge component 3 working, it can cooperate with the scraper 2103 to strengthen the cleaning effect of the adhered impurities and dirt on the surface of the connecting cylinder 2104.

[0037] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed. The scope of protection required by the present invention is defined by the appended claims and their equivalents.

Claims

1. An axial flow pump for chemical industry, comprising a pump body (1) and a controller (4), characterized in that, A filtering mechanism (2) is provided at the bottom of the pump body (1), and a sewage discharge component (3) is provided on the surface of the filtering mechanism (2). Among them, the filtering mechanism (2) includes an installation pipe (201) connected to the liquid inlet end of the pump body (1). A second partition plate (203) and a first partition plate (202) are fixedly connected to the inner wall of the installation pipe (201) in sequence from top to bottom. Both the second partition plate (203) and the first partition plate (202) are inclined. A sewage discharge area is formed between the second partition plate (203) and the first partition plate (202). A derivation area is formed between the top of the second partition plate (203) and the inside of the installation pipe (201). An introduction area is formed between the bottom of the first partition plate (202) and the inside of the installation pipe (201). An inlet water component (21) is provided on the surface of the installation pipe (201). A treatment component (22) is provided on the surface of the second partition plate (203). A hydraulic sensor (204) located inside the sewage discharge area is embedded and installed on the surface of the second partition plate (203).

2. The axial flow pump for chemical industry according to claim 1, characterized in that, The inlet water component (21) includes an introduction shell (2102) provided on the surface of the installation pipe (201) and connected to the introduction area. An installation shell (2101) connected to the sewage discharge area is fixedly connected to the surface of the installation pipe (201). The other end of the introduction shell (2102) is connected to the inside of the installation shell (2101). A scraper (2103) is fixedly connected to the inside of the installation shell (2101). A rotating block (2105) is rotatably connected to the inner wall of the installation shell (2101) far from the installation pipe (201). A connecting cylinder (2104) is fixedly connected to the other side of the rotating block (2105). Filter holes (2106) evenly distributed are formed on the surface of the connecting cylinder (2104). The other end of the connecting cylinder (2104) sequentially penetrates through the installation pipe (201) and the second partition plate (203) and is connected to the derivation area. The other end of the connecting cylinder (2104) is rotatably connected to the inner wall of the second partition plate (203).

3. The axial flow pump for chemical industry according to claim 2, wherein, A rotating ring (2108) is rotatably connected to the inner wall of the installation shell (2101). The connecting cylinder (2104) is located inside the rotating ring (2108). A push plate (2109) is fixedly connected to the inside of the rotating ring (2108). Uniformly distributed driving blades (2110) are fixedly connected to the outside of the rotating ring (2108).

4. The axial flow pump for chemical industry according to claim 3, characterized in that, A connecting pipe (2107) is provided inside the connecting cylinder (2104). One end of the connecting pipe (2107) is fixedly connected to a fixed rod fixedly connected to the inner wall of the rotating block (2105). The other end of the connecting pipe (2107) sequentially penetrates through the connecting cylinder (2104) and the installation pipe (201).

5. The axial flow pump for chemical industry according to claim 4, characterized in that, A connection cavity (2111) communicating with the connecting pipe (2107) is formed inside the fixed rod. A through hole is formed on the surface of the rotating block (2105). An adjustment cavity (2113) communicating with the through hole is formed inside the rotating block (2105). A through hole (2112) communicating with the connection cavity (2111) is formed on the inner wall of the adjustment cavity (2113). A sliding plate (2114) is slidably connected to the inner wall of the adjustment cavity (2113). An adjustment rod (2115) is fixedly connected to one side of the sliding plate (2114) away from the through hole (2112). A first spring (2116) is fixedly connected between the surface of the sliding plate (2114) and the inner wall of the adjustment cavity (2113).

6. The axial flow pump for chemical industry according to claim 2, characterized in that, The processing assembly (22) includes a mounting block (2203) fixedly connected to the side of the second partition plate (203) away from the sewage discharge area. One end of the mounting block (2203) extends to the opening at one end of the connecting cylinder (2104) away from the mounting shell (2101). A connecting rod (2204) extending into the connecting cylinder (2104) is fixedly connected to the surface of the mounting block (2203). Thrust rods (2206) evenly distributed and corresponding to the filter holes (2106) are arranged on the surface of the connecting rod (2204). A sliding rod (2207) is arranged inside the thrust rod (2206). The other end of the sliding rod (2207) penetrates through the thrust rod (2206) and is fixedly connected to the surface of the connecting rod (2204). A fixing plate (2208) slidably connected to the inner wall of the thrust rod (2206) is fixedly connected to the other end of the sliding rod (2207). A second spring (2205) is fixedly connected between the surface of the fixing plate (2208) and the inner wall of the thrust rod (2206).

7. The axial flow pump for chemical industry according to claim 6, characterized in that, The processing assembly (22) further includes a plurality of chutes (2201) formed on the inner side of the connecting cylinder (2104) and evenly distributed. The filter hole (2106) communicates with the adjacent chute (2201). Two symmetrically distributed guiding blocks (2202) are fixedly connected to the inner wall of the filter hole (2106).

8. The axial flow pump for chemical industry according to claim 4, characterized in that, The sewage discharge assembly (3) includes a sewage discharge pipe (312) arranged on the surface of the installation pipe (201) and communicating with the sewage discharge area. A fixing cylinder (302) is arranged on the surface of the sewage discharge pipe (312). Two sewage discharge holes for communicating the inside of the fixing cylinder (302) with the sewage discharge pipe (312) are formed on the surface of the fixing cylinder (302). A counterweight block (307) is slidably connected to the inner wall of the fixing cylinder (302). An electromagnet (303) is arranged on the inner top wall of the fixing cylinder (302). The counterweight block (307) is made of ferromagnetic metal material.

9. The axial flow pump for chemical industry according to claim 8, characterized in that, A liquid storage cylinder (305) is fixedly connected to the top of the fixing cylinder (302). A pressing rod (304) is fixedly connected to the top of the counterweight block (307). The upper end of the pressing rod (304) penetrates out of the fixing cylinder (302) and is slidably connected to the inner wall of the liquid storage cylinder (305). The inside of the liquid storage cylinder (305) is filled with hydraulic oil.

10. An axial flow pump for chemical industry according to claim 9, characterized in that, The sewage discharge assembly (3) further includes a fixed block (301) fixedly connected to the surface of the installation pipe (201). A rotating disk (308) is rotatably connected inside the fixed block (301). An introduction cavity (311) is formed inside the rotating disk (308). Connecting holes (310) which are evenly distributed and communicate with the introduction cavity (311) are formed on the surface of the rotating disk (308). A communication cavity (309) which communicates with the connecting holes (310) is formed inside the fixed block (301). A conduit (306) is connected to the top of the liquid storage cylinder (305) in a communicating manner. The other end of the conduit (306) communicates with the communication cavity (309). One end of the connecting pipe (2107) is fixedly connected to the surface of the rotating disk (308) and communicates with the introduction cavity (311).

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