Self-priming pump
By installing self-priming pumps downstream of the marine interception net, the problem of low efficiency in marine debris cleanup is solved by using vacuum suction and centrifugal force to remove the hazardous materials. This achieves automated cleanup and improves the safety of the nuclear power plant's cold source system.
Patent Information
- Application Number
- CN202520049625.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-09
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2035-01-09
AI Technical Summary
In existing technologies, the cleanup efficiency of marine debris such as jellyfish and marine organisms intercepted by marine interception nets is relatively low, which affects the safety of nuclear power plant cooling source systems.
Design a self-priming pump, installed downstream of the marine interception net. The self-priming mechanism creates a vacuum to draw the debris into the pump casing, and the impeller mechanism generates centrifugal force to discharge the debris. Optional cutting blades can be added to cut entangled debris, achieving automated cleaning.
This significantly reduced labor costs, improved the efficiency of clearing up hazardous materials, and ensured the safety of the nuclear power plant's cold source system.
Smart Images
Figure CN223563053U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to pump technical field, especially relate to a self-priming pump. BACKGROUND
[0002] Nuclear power plants mostly use seawater as a cold source to provide cooling water for steam turbines and nuclear island equipment. In recent years, due to the invasion of jellyfish marine organisms, marine garbage and other disaster-causing objects, the steam turbines and nuclear island equipment often lose the cold source, resulting in unit tripping, tripping and reduced power operation events.
[0003] To ensure the safety of the cold source system, current nuclear power plants have successively set up interception nets in the water intake channel to intercept jellyfish marine organisms, marine garbage and other disaster-causing objects, and then manually clean the jellyfish marine organisms, marine garbage and other disaster-causing objects in the net pockets of the interception nets, but the manual cleaning efficiency is low.
[0004] Therefore, how to overcome the above technical defects is a problem to be solved by those skilled in the art. INVENTION CONTENTS
[0005] Therefore, the utility model aims at providing a self-priming pump which can effectively improve the cleaning efficiency and effect of disaster-causing objects.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:
[0007] A self-priming pump is arranged on the downstream side of a marine interception net, and the self-priming pump can suck and discharge disaster-causing objects in the marine interception net to a preset position;
[0008] The self-priming pump comprises:
[0009] A pump shell has a cavity in it, a pump shaft is arranged in the cavity, and a suction inlet and a discharge outlet are arranged on the pump shell;
[0010] A self-priming mechanism is arranged on the pump shell and communicates with the cavity of the pump shell, and the self-priming mechanism can form a preset vacuum degree in the pump shell to suck the disaster-causing objects into the pump shell;
[0011] A impeller mechanism is arranged on the pump shaft, and the impeller mechanism can rotate to generate centrifugal force to discharge the disaster-causing objects from the discharge outlet;
[0012] A driving mechanism can drive the pump shaft to rotate to drive the impeller mechanism to rotate.
[0013] Optionally, the impeller mechanism comprises blades with a spiral structure, and the end of the blade close to the suction inlet is further provided with a hook structure.
[0014] Optionally, the blade is a helical single blade.
[0015] Optionally, further comprising a cutting knife, the cutting knife is arranged on the pump shaft, and the cutting knife is capable of rotating under the action of the pump shaft to realize cutting of the disaster-causing object.
[0016] Optionally, the cutting knife is arranged on the end of the pump shaft close to the suction inlet.
[0017] Optionally, the cutting knife comprises a cutting knife body and a blade tip part arranged on the cutting knife body, the blade tip part is at least two, and is arranged along the circumference of the cutting knife body.
[0018] Optionally, the cutting knife is detachably connected with the pump shaft.
[0019] Optionally, the self-suction mechanism comprises a self-suction mechanism body, a one-way valve and a liquid level switch.
[0020] The one-way valve is arranged on the self-suction mechanism body, the one-way valve is capable of communicating with the cavity of the self-suction mechanism body, and the liquid level switch is arranged inside the self-suction mechanism body.
[0021] Optionally, the cavity of the self-suction mechanism body is further provided with a filter screen.
[0022] Optionally, further comprising a shaft coupling, the driving mechanism is connected with the pump shaft through the shaft coupling.
[0023] The shaft coupling is a serpentine spring centrifugal pump shaft coupling.
[0024] From the above technical solution, it can be seen that the self-suction pump is started, under the action of the self-suction mechanism, a preset vacuum degree is formed in the cavity of the pump shell, the disaster-causing object and seawater are sucked into the cavity of the pump shell from the suction inlet, at this time, the driving mechanism drives the impeller mechanism to rotate through the pump shaft, the impeller mechanism generates centrifugal force in the process of rotation, so that the disaster-causing object entering the pump shell is discharged to a preset position from the discharge port.
[0025] Compared with the prior art, the self-suction pump is used to automatically clean the disaster-causing object, which greatly saves the labor cost and improves the cleaning efficiency. BRIEF DESCRIPTION OF DRAWINGS
[0026] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only embodiments of the present application, and those skilled in the art can obtain other drawings according to the provided drawings without creating any creative labor.
[0027] Figure 1 The structural schematic diagram of the self-priming pump is disclosed in the embodiments of the present application.
[0028] Mark explanation:
[0029] 100, pump shell, 101, suction inlet, 102, discharge outlet, 200, pump shaft, 300, self-priming mechanism, 301, self-priming mechanism body, 302, one-way valve, 303, liquid level switch, 400, impeller mechanism, 500, bearing box, 600, driving mechanism, 700, cutting knife, 800, shaft coupling, 900, base. DETAILED DESCRIPTION
[0030] Therefore, the core of the present application is to provide a self-priming pump which can save labor cost and effectively improve the cleaning efficiency of disaster-causing objects.
[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. 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 fall within the scope of protection of the present application.
[0032] Please refer to Figure 1 The self-priming pump disclosed in the embodiments of the present application is arranged on the downstream side of the ocean interception net, and the self-priming pump can suck and discharge disaster-causing objects in the ocean interception net to a preset position.
[0033] The self-priming pump comprises a pump shell 100, a self-priming mechanism 300, an impeller mechanism 400 and a driving mechanism 600, wherein the pump shell 100 has a cavity, the pump shaft 200 is arranged in the cavity, the pump shell 100 is provided with a suction inlet 101 and a discharge outlet 102; the self-priming mechanism 300 is arranged on the pump shell 100 and communicates with the cavity of the pump shell 100, the self-priming mechanism 300 can form a preset vacuum degree in the pump shell 100 to suck disaster-causing objects into the pump shell 100; the impeller mechanism 400 is arranged on the pump shaft 200, the impeller mechanism 400 can rotate to generate centrifugal force to discharge the disaster-causing objects from the discharge outlet 102; and the driving mechanism 600 can drive the pump shaft 200 to rotate to drive the impeller mechanism 400 to rotate.
[0034] It should be noted that the ocean interception net and the self-priming pump can be connected through a pipeline or other connecting device, so that the disaster-causing objects intercepted by the ocean interception net can enter the self-priming pump through the pipeline or other connecting device.
[0035] Start the self-priming pump, under the action of the self-priming mechanism 300, the cavity of the pump shell 100 forms a preset vacuum degree, and the disaster-causing objects and seawater are sucked into the cavity of the pump shell 100 from the suction port 101, at this time, the driving mechanism 600 drives the impeller mechanism 400 to rotate through the pump shaft 200, and the impeller mechanism 400 generates centrifugal force in the rotating process, so that the disaster-causing objects entering the pump shell 100 are discharged from the discharge port 102 to a preset position.
[0036] Compared with the prior art, the self-priming pump is used for automatically cleaning the disaster-causing objects, so that the labor cost is greatly saved, and the cleaning efficiency is improved.
[0037] It should be noted that the marine garbage includes plastic garbage, discarded fishing nets and fishing gear, foamed plastic and the like.
[0038] The self-priming pump disclosed in the embodiment of the utility model further comprises a controller, the driving mechanism 600 is electrically connected with the controller, and the controller can control the driving mechanism 600 to start or stop.
[0039] As a further embodiment, the pump shell 100 is further provided with an inspection hole, and the self-priming pump can be quickly overhauled.
[0040] The specific structure of the impeller mechanism 400 is not limited in the embodiment of the utility model, and as long as the structure meets the use requirements of the utility model, it is within the protection scope of the utility model.
[0041] As an embodiment of the utility model, the impeller mechanism 4 disclosed in the embodiment of the utility model comprises a blade with a spiral structure, wherein the end of the blade close to the suction port 101 of the pump shell 100 is further provided with a hook structure.
[0042] As a further embodiment, the blade disclosed in the embodiment of the utility model is a spiral single blade. In this way, the disaster-causing objects with winding property entering the pump shell 100 can be hooked and guided to the center of the impeller by the blade, so that the disaster-causing objects are not clamped into the gap of the impeller, thereby being more beneficial to be sucked and discharged by the self-priming pump.
[0043] As an embodiment of the utility model, the blade disclosed in the embodiment of the utility model is preferably a large-channel spiral blade. In this way, the channel between the blades is wider, thereby being more beneficial to the suction and discharge of the disaster-causing objects.
[0044] As a further embodiment, the self-priming pump disclosed in the embodiment of the utility model further comprises a bearing box 500, wherein the bearing box 500 is arranged in the pump shell 100 and is used for supporting the rotor of the self-priming pump and the impeller mechanism 400.
[0045] As a further embodiment, the self-suction pump disclosed in the embodiment of the utility model further comprises a cutting knife 700, the cutting knife 700 is arranged on the pump shaft 200, the cutting knife 700 can rotate under the action of the pump shaft 200 to realize cutting of marine garbage and the like with winding property.
[0046] When the mixture of disaster-causing matter and seawater enters the pump shell 100 of the automatic pump, some small disaster-causing matters can be discharged from the discharge port 102 under the action of the impeller mechanism 400, and some disaster-causing matters with winding property, such as ropes, plastic bags and fishing nets and the like, can be cut off by the cutting knife 700 and then transported to the discharge port 102 by the rotation of the impeller.
[0047] As a further embodiment, the cutting knife disclosed in the embodiment of the utility model is arranged on the end of the pump shaft 200 close to the suction port 101. In this way, winding on the rotating shaft 200 is further avoided.
[0048] The embodiment of the utility model does not limit the specific structure of the cutting knife 700, and any structure meeting the use requirements of the utility model is within the protection scope of the utility model.
[0049] As one of the embodiments, the cutting knife 700 disclosed in the embodiment of the utility model comprises a cutting knife body and a blade tip part arranged on the cutting knife body, the blade tip part is at least two and is arranged along the circumference of the cutting knife body.
[0050] During the rotation of the pump shaft 200, the blade tip part can cut the ropes, plastic bags and fishing nets and the like entering the cavity of the pump shell 100 into small pieces of garbage, so that the discharge is more convenient.
[0051] The cutting knife 700 can be triangular, prismatic or other special-shaped structures, as long as the structure meeting the use requirements of the utility model is within the protection scope of the utility model, and the person skilled in the art can select according to the actual demand.
[0052] The cutting knife 700 and the pump shaft 200 disclosed in the embodiment of the utility model can be fixedly connected or detachably connected, as long as the structure meeting the use requirements of the utility model is within the protection scope of the utility model, and the person skilled in the art can select according to the actual demand.
[0053] As a preferred embodiment, the cutting knife 700 and the pump shaft 200 disclosed in the embodiment of the utility model are detachably connected. In this way, when the cutting knife 700 is worn, it can be quickly replaced, so that the cleaning efficiency is further improved.
[0054] The embodiment of the utility model does not limit the specific structure of the self-suction mechanism 300, and any structure meeting the use requirements of the utility model is within the protection scope of the utility model.
[0055] As one of the embodiments, the self-suction mechanism 300 disclosed in the embodiment of the utility model includes a self-suction mechanism body 301, a one-way valve 302 and a liquid level switch 303, the one-way valve 302 is arranged on the self-suction mechanism body 301, the one-way valve 302 can be communicated with the cavity of the self-suction mechanism body 301, and the liquid level switch 303 is arranged inside the self-suction mechanism body 301.
[0056] It should be noted that the one-way valve 302 can only discharge the air in the cavity of the pump shell 100, so as to avoid the air outside from entering the self-suction mechanism body 301.
[0057] The self-suction mechanism body 301 can discharge the air in the cavity of the pump shell 100 through the one-way valve 302, so that the pump shell 100 has a preset vacuum degree, at this time, the disaster-causing matter and seawater can be sucked into the cavity of the pump shell 100, when the liquid in the cavity of the pump shell 100 enters the self-suction mechanism body 301, the liquid level switch 303 detects the liquid level and controls the one-way valve 302 to be closed.
[0058] It should be noted that the one-way valve 302 and the liquid level switch 303 are electrically connected with the controller, when the liquid level switch 303 detects the liquid level in the self-suction mechanism body 301, the liquid level switch 303 transmits a signal to the one-way valve 302, and the one-way valve 302 is automatically closed.
[0059] In order to avoid the disaster-causing matter from entering the self-suction pump mechanism body, the cavity of the self-suction mechanism body 301 disclosed in the embodiment of the utility model further has a filter screen.
[0060] The filter screen can be one layer or multiple layers, and the embodiment of the utility model does not make specific limitation thereon, and the person skilled in the art can select according to actual needs.
[0061] As a further embodiment, the self-suction pump disclosed in the embodiment of the utility model further includes a shaft coupling 800, and the driving mechanism 600 and the pump shaft 200 are connected through the shaft coupling 800.
[0062] When the driving mechanism 600 is started, the driving mechanism 600 drives the pump shaft 200 to rotate through the shaft coupling 800, so as to compensate the deviation between the two shafts due to inaccurate manufacturing and installation, deformation during work or thermal expansion and the like.
[0063] The embodiment of the utility model does not limit the specific structure of the shaft coupling 800, as long as the structure meeting the use requirements of the utility model is within the protection scope of the utility model.
[0064] As one of the embodiments, the coupling 800 disclosed in the embodiment of the utility model is preferably a serpentine spring centrifugal pump coupling 800. In this way, the transmission efficiency and shock absorption performance of the self-priming pump can be further improved.
[0065] The specific structure of the driving mechanism 600 is not limited in the embodiment of the utility model, wherein the driving mechanism 600 can be a motor, can be a cylinder, and of course can be other structures, as long as the structure meeting the use requirements of the utility model is within the protection scope of the utility model, and the person skilled in the art further selects according to the actual needs.
[0066] As a further embodiment, the self-priming pump disclosed in the embodiment of the utility model further comprises a base 900, wherein the pump shell 100 and the driving mechanism 600 are both fixed on the base 900.
[0067] The specific number of the self-priming pumps arranged in the ocean is not limited in the embodiment of the utility model, and generally, a plurality of self-priming pumps need to be arranged, which can further improve the cleaning efficiency of the disaster-causing objects.
[0068] Finally, it should be noted that in this document, the relationship terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the term "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.
[0069] The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments, and the same or similar parts between various embodiments can be referred to each other.
[0070] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the utility model. Various modifications of these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the utility model. Therefore, the utility model will not be limited to these embodiments shown in the text, but will conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A self-priming pump, characterized in that, Located downstream of the marine interception net, the self-priming pump is capable of sucking in and discharging the hazardous material within the marine interception net to a preset location. The self-priming pump includes: A pump casing, wherein the pump casing has a cavity, a pump shaft is disposed in the cavity, and an inlet and an outlet are disposed on the pump casing; A self-priming mechanism is disposed on the pump housing and communicates with the cavity of the pump housing. The self-priming mechanism enables a preset vacuum to be formed inside the pump housing so as to draw the hazard into the pump housing. An impeller mechanism is mounted on the pump shaft and is capable of rotating to generate centrifugal force so that the hazard is discharged from the outlet. A drive mechanism is provided that can drive the pump shaft to rotate, thereby causing the impeller mechanism to rotate.
2. The self-priming pump according to claim 1, characterized in that, The impeller mechanism includes blades with a helical structure, and the end of the blade near the inlet is also provided with a hook structure.
3. The self-priming pump according to claim 2, characterized in that, The blade is a spiral single blade.
4. The self-priming pump according to claim 1, characterized in that, It also includes a cutting blade, which is mounted on the pump shaft and can rotate under the action of the pump shaft.
5. The self-priming pump according to claim 4, characterized in that, The cutting blade is located at the end of the pump shaft near the suction port.
6. The self-priming pump according to claim 4, characterized in that, The cutting blade includes a cutting blade body and a blade tip disposed on the cutting blade body. There are at least two blade tips, which are disposed along the circumference of the cutting blade body.
7. The self-priming pump according to claim 4, characterized in that, The cutting blade is detachably connected to the pump shaft.
8. The self-priming pump according to claim 1, characterized in that, The self-priming mechanism includes a self-priming mechanism body, a one-way valve, and a liquid level switch; The one-way valve is disposed on the self-priming mechanism body and can communicate with the cavity of the self-priming mechanism body. The liquid level switch is disposed inside the self-priming mechanism body.
9. The self-priming pump according to claim 8, characterized in that, The cavity of the self-priming mechanism body is also equipped with a filter screen.
10. The self-priming pump according to claim 1, characterized in that, It also includes a coupling, through which the drive mechanism is connected to the pump shaft; The coupling is a serpentine spring centrifugal pump coupling.