Axially split centrifugal pump with high working stability

Abstract

The invention discloses an axially split centrifugal pump with high working stability, and particularly relates to the technical field of centrifugal pumps, the axially split centrifugal pump comprises a bottom base plate, two triangular supports are welded to the top of the bottom base plate, a pump body is arranged at the top of the bottom base plate, a driving motor is fixedly mounted on one side of the pump body, and an inlet pipe is arranged on the front side of the pump body; a discharge pipe is arranged on the rear side of the pump body, the two triangular supports are welded to the bottom of the inlet pipe and the bottom of the discharge pipe respectively, the inlet pipe and the discharge pipe are both communicated with the pump body, and connecting structures are arranged at the ends, away from the pump body, of the inlet pipe and the discharge pipe. By arranging the connecting mechanism, the pipeline flange and other structures, the flange and the pipeline can be quickly dismounted, quick dismounting can be achieved without a tool, convenience is achieved, meanwhile, the identity of dismounting personnel can be recognized, the problem that illegal dismounting is conducted by illegal personnel is avoided, safety is high, and the actual using effect is ideal.

Description

Technical Field

[0001] The present invention relates to the technical field of centrifugal pumps, and more particularly to a split case centrifugal pump with high working stability. Background Art

[0002] A split case centrifugal pump, also known as a split case circulation pump or a single-stage double-suction centrifugal pump, is a fluid conveying equipment widely used in many fields. The working principle of a split case centrifugal pump is mainly based on the action of centrifugal force. When the pump is started, the motor drives the pump shaft and impeller to rotate at high speed. The blades on the impeller generate centrifugal force on the fluid, allowing the fluid to gain kinetic energy. The fluid is sucked into the central area of ​​the pump body to form a low-pressure area. The external fluid enters the pump through the suction pipe under the action of atmospheric pressure. Then, the fluid is thrown to the outer edge of the impeller under the action of centrifugal force and flows to the outlet along the flow channel of the pump casing. In the volute, the liquid slows down due to the gradual expansion of the flow channel, and part of the kinetic energy is converted into static pressure energy. Finally, it flows into the discharge pipe at a higher pressure and is delivered to the designated location.

[0003] Although the split case centrifugal pump in the prior art can be used normally, it still has many disadvantages in actual use. For example, the split case centrifugal pump in the prior art generally adopts flange connection when connecting the pipeline. The flange connection also requires tools such as wrenches when disassembling and assembling, which is very inconvenient and cannot prevent illegal personnel from illegally dismantling. The safety is not ideal. Summary of the invention

[0004] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides a split-case centrifugal pump with high working stability. By providing structures such as a connecting mechanism and a pipe flange, the present invention can quickly remove the flange and the pipe without using tools, which is very convenient. At the same time, the identity of the person performing the removal can also be identified, avoiding the problem of illegal removal by unlawful persons. The pump has high safety and ideal actual use effect, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: a split case centrifugal pump with high working stability, comprising a bottom base plate, two triangular brackets are welded on the top of the bottom base plate, a pump body is arranged on the top of the bottom base plate, a driving motor is fixedly installed on one side of the pump body, an inlet pipe is arranged on the front side of the pump body, and a discharge pipe is arranged on the rear side of the pump body, two triangular brackets are welded on the bottom of the inlet pipe and the discharge pipe respectively, the inlet pipe and the discharge pipe are both connected to the pump body, and the inlet pipe and the discharge pipe are both provided with a connecting structure at one end away from the pump body; The two connecting structures each include a connecting seat, an explosion-proof motor is fixedly installed on one side of the connecting seat close to the pump body, a transmission cavity is arranged inside the connecting seat, the explosion-proof motor penetrates the outer wall of the connecting seat and extends into the transmission cavity, a transmission gear ring is arranged inside the transmission cavity, six mounting gears are arranged on the inner side of the transmission gear ring, mounting screws are fixedly installed inside the six mounting gears, the end of the mounting screw at the top is fixedly installed on the end of the explosion-proof motor output shaft at the corresponding position, the mounting screw at the top is drivingly connected to the explosion-proof motor output shaft at the corresponding position, the five mounting screw ends at the bottom are rotatably connected to the inner wall of the transmission cavity, the mounting screw The connecting seat is provided with an extension ring on one side of the connecting seat away from the pump body, and an arc-shaped card seat is provided on the top side and the bottom side of the inner part of the extension ring. Three mounting screw holes are provided on the arc-shaped card seat, and the mounting screw holes are threadedly connected with the mounting screws at the corresponding positions. The input end of the explosion-proof motor is connected with an identification controller, and the identification controller is set as a single-chip microcomputer. The identification controller is fixedly installed on the connecting seat, and the input end of the identification controller is connected with a fingerprint identification module, and the input end of the fingerprint identification module is connected with a fingerprint collector, and the fingerprint collector is set at the top of the connecting seat. The input end of the identification controller is connected with a battery unit; The fingerprint collector is used to collect fingerprints of personnel who disassemble the pipeline and send the collected fingerprints to the fingerprint recognition module for processing; The fingerprint recognition module is used to recognize the fingerprint of the person dismantling the pipeline collected by the fingerprint collector, and send the recognition result to the recognition controller for processing; The identification controller is used to receive and process the identification result of the fingerprint identification module and control the operation of the explosion-proof motor.

[0006] In a preferred embodiment, a pipeline flange is provided on a side of the connection seat away from the pump body, and six through holes are penetrated through the pipeline flange.

[0007] In a preferred embodiment, the six through holes correspond one-to-one to the six fixing screws at corresponding positions, and the pipeline flange is arranged on the inner side of the extension ring.

[0008] In a preferred embodiment, a connecting pipe is fixedly mounted on the pipeline flange.

[0009] In a preferred embodiment, the two connecting seats are respectively welded to the ends of the inlet pipe and the outlet pipe away from the pump body, and the cross-sectional shape of the connecting seat is set to be ring-shaped.

[0010] In a preferred embodiment, the outer diameter of the transmission gear ring matches the inner diameter of the transmission cavity, and the transmission gear ring is rotatably connected to the transmission cavity.

[0011] In a preferred embodiment, the six mounting gears are evenly distributed in a ring shape inside the transmission cavity, and the mounting gears are meshed with the transmission gear ring.

[0012] In a preferred embodiment, the extension ring and the connecting seat are an integrated structure, and both the extension ring and the connecting seat are made of stainless steel metal material.

[0013] Technical effects and advantages of the present invention: The present invention is provided with structures such as a connecting mechanism and a pipe flange, so that the flange and the pipe can be quickly removed without using tools, which is very convenient. At the same time, the identity of the person performing the removal can be identified, avoiding the problem of illegal removal by unlawful persons. The present invention has high safety and ideal actual use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0015] Figure 2 It is a schematic diagram of the overall three-dimensional structure of the present invention from top view.

[0016] Figure 3 It is a schematic diagram of the three-dimensional structure of the arc-shaped card seat of the present invention.

[0017] Figure 4 It is a schematic diagram of the cross-sectional structure of the connecting seat of the present invention.

[0018] Figure 5 It is a system schematic diagram of the present invention.

[0019] The accompanying drawings are marked as follows: 1. base plate; 2. triangular bracket; 3. pump body; 4. driving motor; 5. inlet pipe; 6. exhaust pipe; 7. connecting structure; 701. connecting seat; 702. explosion-proof motor; 703. transmission cavity; 704. transmission gear ring; 705. mounting gear; 706. mounting screw; 707. extension ring; 708. arc-shaped socket; 709. mounting screw hole; 710. identification controller; 711. fingerprint identification module; 712. fingerprint collector; 713. battery unit; 8. pipeline flange; 9. connecting pipe. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] As attached Figure 1 , Attachment Figure 2, Attachment Figure 3 , Attachment Figure 4 and attached Figure 5 As shown, the present invention provides a split-center centrifugal pump with high working stability, comprising a bottom base plate 1, two triangular brackets 2 are welded on the top of the bottom base plate 1, a pump body 3 is arranged on the top of the bottom base plate 1, a driving motor 4 is fixedly installed on one side of the pump body 3, an inlet pipe 5 is arranged on the front side of the pump body 3, and a discharge pipe 6 is arranged on the rear side of the pump body 3, two triangular brackets 2 are welded on the bottom of the inlet pipe 5 and the discharge pipe 6 respectively, the inlet pipe 5 and the discharge pipe 6 are both connected with the pump body 3, and the inlet pipe 5 and the discharge pipe 6 are both provided with a connecting structure 7 at one end away from the pump body 3; The two connection structures 7 each include a connection seat 701, a side of the connection seat 701 close to the pump body 3 is fixedly mounted with an explosion-proof motor 702, a transmission cavity 703 is arranged inside the connection seat 701, the explosion-proof motor 702 penetrates the outer wall of the connection seat 701 and extends into the transmission cavity 703, a transmission gear ring 704 is arranged inside the transmission cavity 703, six mounting gears 705 are arranged inside the transmission gear ring 704, and mounting screws 706 are fixedly mounted inside the six mounting gears 705, and the ends of the mounting screws 706 located at the top are fixedly mounted. The end of the output shaft of the explosion-proof motor 702 is installed at the corresponding position, the mounting screw 706 at the top is connected to the output shaft of the explosion-proof motor 702 at the corresponding position, and the ends of the five mounting screws 706 at the bottom are rotatably connected to the inner wall of the transmission cavity 703. The mounting screw 706 passes through the outer wall of the connecting seat 701 and extends to the outside of the connecting seat 701. An extension ring 707 is provided on the side of the connecting seat 701 away from the pump body 3. The top and bottom sides of the extension ring 707 are both provided with an arc-shaped holder 708. Three mounting screws are provided on the arc-shaped holder 708. The mounting screw hole 709 is threadedly connected with the mounting screw rod 706 at the corresponding position. The input end of the explosion-proof motor 702 is connected with an identification controller 710. The identification controller 710 is set as a single-chip microcomputer. The single-chip microcomputer is an integrated circuit chip. It adopts ultra-large-scale integrated circuit technology to integrate a central processing unit CPU with data processing capability, a random access memory RAM, a read-only memory ROM, a variety of I / O ports and interrupt systems, timers / counters and other functions into a silicon chip to form a small and complete microcomputer system. The identification controller 710 is fixedly installed on the connecting seat 701. The input end of the identification controller 710 is connected with a fingerprint identification module 711. The fingerprint identification module is a technical means for identity authentication or access control by detecting and extracting biometric information of fingerprints. It is mainly composed of a sensor, a signal processing unit, an image processing algorithm and other parts. The input end of the fingerprint identification module 711 is connected with a fingerprint collector 712, and the fingerprint collector 712 is arranged on the top of the connecting seat 701. The input end of the identification controller 710 is connected with a battery unit 713; The fingerprint collector 712 is used to collect fingerprints of personnel who disassemble the pipeline, and send the collected fingerprints to the fingerprint recognition module 711 for processing; The fingerprint recognition module 711 is used to recognize the fingerprint of the person dismantling the pipeline collected by the fingerprint collector 712, and send the recognition result to the recognition controller 710 for processing; The identification controller 710 is used to receive and process the identification result of the fingerprint identification module 711 and control the operation of the explosion-proof motor 702 .

[0022] A pipeline flange 8 is disposed on a side of the connection seat 701 away from the pump body 3 , and six through holes are penetrated through the pipeline flange 8 .

[0023] The six through holes correspond one by one to the six fixing screws at corresponding positions, and the pipeline flange 8 is arranged on the inner side of the extension ring 707 .

[0024] A connecting pipe 9 is fixedly mounted on the pipeline flange 8 .

[0025] The two connection seats 701 are respectively welded to the ends of the inlet pipe 5 and the outlet pipe 6 away from the pump body 3 , and the cross-sectional shape of the connection seat 701 is set to be ring-shaped.

[0026] The outer diameter of the transmission gear ring 704 matches the inner diameter of the transmission cavity 703 , and the transmission gear ring 704 is rotatably connected to the transmission cavity 703 .

[0027] The six mounting gears 705 are evenly distributed in a ring shape inside the transmission cavity 703 , and the mounting gears 705 are meshed with the transmission gear ring 704 .

[0028] The extension ring 707 and the connection seat 701 are an integrated structure, and both the extension ring 707 and the connection seat 701 are made of stainless steel metal material.

[0029] The single chip microcomputer model is set to M68HC16, and the fingerprint identification module 711 model is set to ZFM-608SA.

[0030] The specific implementation method is as follows: when using the present invention, if the authorized personnel are instructed to remove the connecting tube 9, they press their own fingers on the fingerprint collector 12, and the fingerprint collector 712 can collect fingerprints and send the collected fingerprints to the fingerprint recognition module 711 for processing. The fingerprint recognition module 711 recognizes the fingerprints and sends the recognition results to the recognition controller 710 for processing. If the recognition result is the fingerprint of the authorized personnel, the recognition controller 710 controls the two explosion-proof motors 702 to start, and the explosion-proof motors 702 drive the mounting screws 706 thereon to rotate, and the mounting screws 706 drive the mounting gears 705 thereon to rotate. Under the action of the transmission gear ring 704, one mounting gear 705 drives the other five mounting gears 705 to rotate synchronously, so that the six mounting screws 706 rotate synchronously. The rotation of the mounting screws 706 will disengage from the mounting screw holes 709 on the arc-shaped holder 708, which will cause the arc-shaped holder to rotate. 708 is pushed out of the extension ring 707. After it comes out, the pipe flange 8 is unfixed, so that the connecting pipe 9 can be removed. The removal is fast and the identity of the operator can be identified. If the operator is identified as an unauthorized person, the explosion-proof motor 702 will not start, avoiding the problem of illegal removal by illegal personnel. When installation is required, the arc-shaped holder 708 is manually supported on the installation screw 706 fixed at the corresponding position, and then the fingerprint is identified again. Since the last fingerprint identification was removal, this identification is installation. The removal or installation is determined according to the number of successful identifications. After successful identification, the installation screw 706 is rotated to fix the arc-shaped holder 708 back to its original position to complete the installation. This allows the present invention to quickly remove flanges and pipes without the use of tools, which is very convenient. At the same time, the identity of the person performing the removal can be identified, avoiding the problem of illegal removal by illegal personnel. The safety is high and the actual use effect is ideal.

[0031] Working principle of the present invention: Refer to the instruction manual Figure 1 , Attachment Figure 2 , Attachment Figure 3 , Attachment Figure 4 and attached Figure 5 When using the present invention, by providing structures such as the connecting mechanism 7 and the pipe flange 8, the present invention can quickly remove the flange and the pipe without using tools, which is very convenient. At the same time, the identity of the person performing the removal can also be identified, avoiding the problem of illegal removal by illegal personnel. The safety is high and the actual use effect is ideal.

[0032] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change; Secondly: In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other; Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A split case centrifugal pump with high working stability, comprising a base plate (1), characterized in that: Two triangular brackets (2) are welded to the top of the bottom base plate (1); a pump body (3) is arranged on the top of the bottom base plate (1); a driving motor (4) is fixedly mounted on one side of the pump body (3); an inlet pipe (5) is arranged on the front side of the pump body (3); and an outlet pipe (6) is arranged on the rear side of the pump body (3); the two triangular brackets (2) are welded to the bottom of the inlet pipe (5) and the outlet pipe (6), respectively; the inlet pipe (5) and the outlet pipe (6) are both connected to the pump body (3); and a connection structure (7) is arranged at one end of the inlet pipe (5) and the outlet pipe (6) away from the pump body (3); The two connection structures (7) each comprise a connection seat (701), an explosion-proof motor (702) being fixedly mounted on a side of the connection seat (701) close to the pump body (3), a transmission cavity (703) being arranged inside the connection seat (701), the explosion-proof motor (702) penetrating the outer wall of the connection seat (701) and extending into the transmission cavity (703), a transmission gear ring (704) being arranged inside the transmission cavity (703), and six mounting gears ( 705), each of the six mounting gears (705) is fixedly installed with a mounting screw (706), the end of the mounting screw (706) located at the top is fixedly installed on the end of the output shaft of the explosion-proof motor (702) at the corresponding position, the mounting screw (706) located at the top is drivingly connected to the output shaft of the explosion-proof motor (702) at the corresponding position, and the ends of the five mounting screws (706) located at the bottom are rotatably connected to the inner wall of the transmission cavity (703), and the mounting screw (706) passes through the connecting The outer wall of the connection seat (701) extends to the outside of the connection seat (701), and an extension ring (707) is provided on the side of the connection seat (701) away from the pump body (3). The top side and the bottom side of the inner part of the extension ring (707) are both provided with an arc-shaped clamping seat (708). Three mounting screw holes (709) are provided through the arc-shaped clamping seat (708). The mounting screw holes (709) are threadedly connected to the mounting screws (706) at corresponding positions. The input end of the explosion-proof motor (702) is connected to an identification A controller (710), wherein the identification controller (710) is configured as a single-chip microcomputer, the identification controller (710) is fixedly mounted on the connection base (701), the input end of the identification controller (710) is connected to a fingerprint identification module (711), the input end of the fingerprint identification module (711) is connected to a fingerprint collector (712), the fingerprint collector (712) is configured on the top of the connection base (701), and the input end of the identification controller (710) is connected to a battery unit (713); The fingerprint collector (712) is used to collect fingerprints of personnel who disassemble the pipeline, and send the collected fingerprints to the fingerprint recognition module (711) for processing; The fingerprint recognition module (711) is used to recognize the fingerprint of the person dismantling the pipeline collected by the fingerprint collector (712), and send the recognition result to the recognition controller (710) for processing; The identification controller (710) is used to receive and process the identification result of the fingerprint identification module (711), and control the operation of the explosion-proof motor (702).

2. A split case centrifugal pump with high working stability according to claim 1, characterized in that: A pipeline flange (8) is provided on the side of the connection seat (701) away from the pump body (3), and six through holes are provided through the pipeline flange (8).

3. A split case centrifugal pump with high working stability according to claim 2, characterized in that: The six through holes correspond one-to-one to the six fixing screws at corresponding positions, and the pipeline flange (8) is arranged on the inner side of the extension ring (707).

4. A split case centrifugal pump with high working stability according to claim 2, characterized in that: A connecting pipe (9) is fixedly mounted on the pipeline flange (8).

5. A split case centrifugal pump with high working stability according to claim 1, characterized in that: The two connection seats (701) are respectively welded to one end of the inlet pipe (5) and the outlet pipe (6) away from the pump body (3); the cross-sectional shape of the connection seat (701) is set to be annular.

6. A split case centrifugal pump with high working stability according to claim 1, characterized in that: The outer diameter of the transmission gear ring (704) matches the inner diameter of the transmission cavity (703), and the transmission gear ring (704) is rotatably connected to the transmission cavity (703).

7. A split case centrifugal pump with high working stability according to claim 1, characterized in that: The six mounting gears (705) are evenly distributed in a ring shape inside the transmission cavity (703), and the mounting gears (705) are meshed with the transmission gear ring (704).

8. The split case centrifugal pump with high working stability according to claim 1, characterized in that: The extension ring (707) and the connection seat (701) are an integrated structure, and the extension ring (707) and the connection seat (701) are both made of stainless steel metal material.

Images