Novel interception suction device

Abstract

The utility model discloses a novel intercepting and sucking device which comprises an intercepting module used for intercepting sundries, a sucking module is fixed at the tail of the intercepting module, the output end of the sucking module is connected with a mounting barrel, a sewage pump is mounted at a water inlet of the mounting barrel, and the sewage pump is partially or completely arranged in the mounting barrel. A barrel sealing seat is arranged on the inner side wall of the installation barrel in the circumferential direction, a pump sealing seat is arranged on the outer side wall of the sewage pump in the circumferential direction, the barrel sealing seat and the pump sealing seat are attached in a sealed mode, and high-pressure water flowing out of the sewage pump is prevented from flowing back to a water inlet of the installation barrel again. Water flow containing impurities enters the suction device after passing through the interception module, then is pressurized by the sewage pump, flows through the sewage pump and the cavity for installing the barrel body, and finally flows out from the water outlet of the barrel body. According to the utility model, sundries in various pump stations under different conditions can be cleaned, the safety is high, and the operation is simple.

Description

Technical Field

[0001] The utility model relates to the technical field of water pump control, in particular to a novel interception and suction device. Background Art

[0002] For small pumping stations, mechanical screens are installed in the diversion water channel to intercept and clean up the debris that enters the diversion water channel with the water flow, to ensure that the screen is not blocked, the water flow in the diversion water channel is smooth, and the normal operation of the pump is ensured. For large pumping stations, the diversion water channel is wide and the water is deep, so it is impossible to install mechanical screens. Some use fixed trash racks. When debris blocks the trash rack, manual cleaning is adopted; when the amount of debris is large (such as floods), due to untimely cleaning, the upstream and downstream water level difference exceeds the standard, the trash rack cannot withstand the water pressure and is damaged, and the debris flows into the pump inlet pool, endangering the safe operation of the pump, and even causing shutdown, causing great losses to the pump station. Summary of the invention

[0003] Purpose of the invention: In order to overcome the deficiencies of the above-mentioned prior art, the present application provides a new interception and suction device, which can solve the problem of debris cleaning in various pumping stations under different circumstances, and has high safety and simple operation.

[0004] Technical solution: The utility model provides a new intercepting and suctioning device, which includes an intercepting module and a suction module for intercepting debris, the suction module includes a suction pipeline, a mounting cylinder and a sewage pump, the tail of the intercepting module is connected to the water inlet end of the suction pipeline, the water outlet end of the suction pipeline is connected to the mounting cylinder, a sewage pump is installed at the water inlet of the mounting cylinder, the sewage pump is partially or completely arranged in the mounting cylinder, a cylinder sealing seat is circumferentially arranged on the inner side wall of the mounting cylinder, a pump sealing seat is circumferentially arranged on the outer side wall of the sewage pump, the cylinder sealing seat and the pump sealing seat are sealed and fitted, preventing the high-pressure water flowing out of the sewage pump from flowing back to the water inlet of the cylinder again.

[0005] Further, including:

[0006] The installation cylinder also includes a core-pulling cylinder and a cylinder water outlet. The output end of the suction pipeline is connected to the water inlet of the installation cylinder. After the water flows through the suction pipeline, it flows from the cylinder water inlet into the core-pulling cylinder and flows out from the cylinder water outlet.

[0007] Further, including:

[0008] The suction pipeline includes a front section of an inlet pipe, a middle section of an inlet pipe and a rear section of the inlet pipe which are connected in sequence. The water outlet of the rear section of the inlet pipe is connected to the water inlet of the cylinder. The inner side of the upper side surface of the front section of the inlet pipe close to the water surface is a surface that plays the role of guiding and sucking water flow, and the upper flow surface in contact with water is set to a concave surface. M is a point on the upper flow surface. Straight line AB is a tangent line of the upper flow surface passing through point M in a vertical section of the front section of the inlet pipe along the direction of water flow. The angle between straight line AB and the horizontal line is set to K. The upper flow surface is a surface with a variable angle K, and K first decreases and then increases along the direction of water flow.

[0009] Further, including:

[0010] The tail section of the water inlet pipe includes a filter cartridge, and the filter cartridge includes a filter cartridge inner cartridge and a filter cartridge outer cartridge. The filter cartridge inner cartridge is configured as a cylindrical structure, and the filter cartridge outer cartridge is circumferentially disposed on the outside of the filter cartridge inner cartridge, and is connected to the filter cartridge outlet at the filter cartridge outer cartridge near the sewage pump side. A filter hole is provided on the filter cartridge inner cartridge wrapped by the filter cartridge outer cartridge, and water containing impurities flows into the filter cartridge, and after flowing through the filter hole, is guided into the cylinder body by the filter cartridge outer cartridge, and then flows to the water inlet of the pump through the cylinder body water inlet.

[0011] Further, including:

[0012] The filter cartridge also includes a cleaning port, which is connected to the inner cartridge of the filter cartridge. A sealing plate is installed on the end face of the cleaning port. When blockage occurs in the filter cartridge, the sealing plate is removed for cleaning. At the same time, the sealing plate prevents water from flowing out of the filter cartridge or external water from entering the filter cartridge.

[0013] Further, including:

[0014] A bottom plate is arranged on the outer side arm of the installation cylinder, and a floating platform is installed on the lower surface of the bottom plate. The floating platform enables the installation cylinder and the sewage pump to float steadily on the water surface.

[0015] Further, including:

[0016] When the sewage pump is completely placed in the installation cylinder, a cover plate is provided on the installation cylinder, and a flange is provided on the upper periphery of the installation cylinder. The cover plate and the flange are connected by fasteners, and a cylinder sealing ring is used to seal the connection surface between the cover plate and the flange.

[0017] Further, including:

[0018] The sewage pump adopts a guide vane guide body structure, including a shaft, a power device and an impeller are arranged on the shaft, and the power device is placed above the impeller, a guide vane guide body is fixed to the lower end of the power device, and the guide vane guide body is arranged between the power device and the impeller, the pump sealing seat is arranged on the outer periphery of the guide vane guide body, and a pump seal is arranged on the pump sealing seat.

[0019] Further, including:

[0020] The sewage pump is a guide vane cutting pump or a guide vane swirl pump, which adopts a guide vane guide body. The guide vane cutting pump also includes an impeller chamber and a stationary blade disc, one end of the impeller chamber is connected to the guide vane guide body, and the other end is connected to the stationary blade disc, which is arranged in the water inlet direction of the impeller; the moving blade disc is arranged on the shaft near the stationary blade disc, and the moving blade disc is fixed on the shaft; when the stationary blade disc and the moving blade disc move relative to each other, the debris entering the water inlet of the pump with the water flow will be cut.

[0021] Further, including:

[0022] The sewage pump is a guide vane cutting pump, which adopts a guide vane guide body; the guide vane cutting pump also includes an impeller chamber and a static blade disc, one end of the impeller chamber is connected to the guide vane guide body, and the other end is connected to the static blade disc; the static blade disc is arranged in the water inlet direction of the impeller, the impeller has at least one cutting blade, and a moving blade is arranged on the inlet edge of the cutting blade. When the impeller and the static blade disc move relative to each other, the debris entering the impeller with the water flow will be cut.

[0023] Further, including:

[0024] The sewage pump adopts a volute-type flow guide structure, and the volute-type flow guide is entirely placed in the installation cylinder, including a shaft, on which a power device and an impeller are arranged, and the power device is placed above the impeller, and a volute-type flow guide is fixed to the lower end of the power device, and the volute-type flow guide is arranged between the power device and the impeller.

[0025] Further, including:

[0026] The pump sealing seat is arranged on the circumference of the outer side wall of the guide vane type guide body or the volute type guide body, and can also be arranged on other circumferential positions of the outer side wall of the sewage pump.

[0027] Further, including:

[0028] The interception module includes a fixing frame, a filter net and a float. The periphery of the water-facing surface of the filter net is fixed on the fixing frame, and the upper end of the water-facing surface of the filter net is higher than the water surface. The side of the filter net is provided with meshes. The float is provided at the upper end of the filter net to support the weight of the filter net so that the upper plane of the filter net is flush with the water surface, allowing the water surface and debris in the water to flow smoothly to the tail of the filter net. Following the direction of water flow, the filter net is contracted from the water inlet to the tail, and the area at the tail is the smallest, so that the intercepted debris will be concentrated at the tail of the filter net.

[0029] Further, including:

[0030] The device also includes a flushing valve. When the sewage pump is working, the flushing valve is closed; when the sewage pump stops working, the check valve on the outlet pipe is closed and the flushing valve is opened. At this time, water quickly flows back to the tail of the suction device and the interception module to flush the blockage and play a role of backwashing. The flushing valve can be automatic or controlled by a controller.

[0031] Beneficial effects: Compared with the prior art, the utility model has the following advantages:

[0032] (1) The present application is mainly composed of an interception module, a suction pipeline, a core-pulling sewage pump device and a floating platform. The core-pulling sewage pump device is composed of a mounting device and a sewage pump. The water-facing surface of the interception module is fixed in the canal by a bracket. The water flows in from the water-facing surface of the interception module and flows to the tail of the interception module. Along the direction of the water flow, the cross-sectional shape of the interception module perpendicular to the water flow is contracted, and the area is the smallest at the tail. The side of the interception module is a filter net. In order to intercept debris in all directions on the water surface and in the water, the filter net is contracted from the water inlet to the tail, and its shape is similar to a net bag. Water and smaller debris are filtered by the filter net and flow to the pump station flow channel. The intercepted debris flows along the water flow to the tail of the interception module and is concentrated at the tail. The suction device is connected to the tail of the interception module to suck and pump out the intercepted debris. In order to deal with different types of debris, the suction device and the sewage pump are installed with a core-pulling structure, which provides a solution for quickly replacing the sewage pump.

[0033] (2) The filter cartridge of the utility model is designed to take into account the possibility that oversized objects may flow into the interception module along the water flow and be sucked into the suction device. Objects that exceed the pumping capacity are adsorbed at the pump inlet and cannot enter the pump, causing the pump to malfunction or even be damaged. The provision of the filter cartridge improves the safety of the equipment.

[0034] (3) The floating platform of the utility model can ensure that the pump impeller is immersed in water, and the pump can be filled with water when it is turned on. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0036] Figure 1 It is a structural schematic diagram of the novel interception and suction device described in Example 1 of the utility model;

[0037] Figure 2 This is a schematic diagram of the structure of the installation cylinder described in Example 1 of the utility model;

[0038] Figure 3 This is a schematic structural diagram of the guide vane cutting pump described in Example 1 of the utility model;

[0039] Figure 4 This is a schematic diagram of the cutting impeller structure as viewed from the water inlet according to Example 1 of the utility model

[0040] Figure 5 This is a structural schematic diagram of the static cutter disc as viewed from the water inlet according to Embodiment 1 of the utility model;

[0041] Figure 6 This is a schematic structural diagram of a guide vane cutting pump with a controller as described in Example 1 of the utility model;

[0042] Figure 7 This is a schematic structural diagram of the submersible guide vane screw pump described in Example 2 of the utility model;

[0043] Figure 8 This is a schematic structural diagram of the spiral impeller as viewed from the water inlet according to Embodiment 2 of the present utility model;

[0044] Fig. 9 This is a schematic structural diagram of the submersible guide vane vortex pump described in Example 3 of the utility model;

[0045] Fig.10 This is a schematic structural diagram of a conventional blade guide vane submersible sewage pump described in Example 4 of the utility model;

[0046] Fig.11 This is a schematic diagram of the structure of the submersible volute sewage pump described in Example 5 of the utility model;

[0047] Fig.12 This is a schematic diagram of the structure of a common motor sewage pump described in Example 6 of the utility model;

[0048] Fig.13 This is a schematic structural diagram of the front section of the water inlet pipe described in Example 1 of the utility model;

[0049] Fig.14 This is a structural schematic diagram of the second guide vane cutting pump in Example 7 of the utility model;

[0050] The figure includes:

[0051] Interception module 1, bracket 1-1, filter 1-2, float 1-3,

[0052] Suction pipeline 2, suction pipeline water inlet 2-1, suction pipeline water outlet 2-2, water inlet pipe front section 21, water inlet pipe middle section 22, water inlet pipe tail section 23, filter cartridge 23-1, filter cartridge inner cartridge 23-1-2, filter hole 23-1-3, filter cartridge outer cartridge 23-1-4, cleaning port 23-1-5, upper flow channel surface 2-3-1,

[0053] Sealing plate 3,

[0054] Floating Platform 4,

[0055] Install the cylinder 5, the cylinder water inlet 5-1, the cylinder sealing seat 5-2, the cylinder water outlet 5-3, the cylinder upper flange 5-4, the core-pulling cylinder 5-5, and the bottom plate 5-6.

[0056] Sewage pump 6, pump seal seat 6-1, pump seal 6-2, guide vane guide body 6-3, cover plate 6-4, power unit 6-5, shaft 6-6,

[0057] Impeller 6-7, cutting impeller blade 6-7-1, blade water inlet edge 6-7-2, moving blade 6-7-3, blade working surface 6-7-4, blade back 6-7-5,

[0058] Stationary knife disc 6-8, stationary blade 6-8-1, stationary blade 6-8-2,

[0059] Impeller fixing 6-9, impeller chamber 6-10, cylinder sealing ring 7, flushing valve 8, lifting ring 9, crane 10, pressure sensor 11, controller 12,

[0060] Submersible guide vane screw pump 13,

[0061] Spiral impeller 13-1, spiral blade 13-1-1, spiral blade inlet edge 13-1-2, spiral blade rim 13-1-3, spiral blade hub 13-1-4,

[0062] Submersible guide vane swirl pump 14, swirl impeller 14-1,

[0063] Conventional vane guide vane submersible sewage pump 15, conventional sewage pump impeller 15-1,

[0064] Submersible volute sewage pump 16, cutting impeller 16-1, volute guide body 16-2, volute water outlet 16-3,

[0065] Bearing body 18, second shaft 19, motor 20,

[0066] The second guide vane cutting pump 24, the moving cutter disc 24-1. DETAILED DESCRIPTION

[0067] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0068] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0069] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0070] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0071] In addition, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0072] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0073] Example 1

[0074] like Figure 1 As shown, the utility model provides a novel intercepting and suctioning device, which includes an intercepting module 1 and a suction module for intercepting debris, the suction module includes a suction pipeline 2, a mounting cylinder 5 and a sewage pump 6, the tail of the intercepting module 1 is connected to the water inlet end of the suction pipeline 2, the water outlet end of the suction pipeline 2 is connected to the mounting cylinder 5, a sewage pump 6 is installed at the water inlet 5-1 of the cylinder, and the sewage pump 6 is partially or completely arranged in the mounting cylinder 5, and a cylinder sealing seat 5-2 is circumferentially arranged on the inner side wall of the mounting cylinder 5, and a pump sealing seat 6-1 is circumferentially arranged on the outer side wall of the sewage pump 6, and the cylinder sealing seat 5-2 and the pump sealing seat 6-1 are sealed and fitted, thereby preventing the high-pressure water flowing out of the sewage pump 6 from flowing back to the water inlet 5-1 of the cylinder again.

[0075] The installation cylinder 5 includes a core-pulling cylinder 5-5 and a cylinder water outlet 5-3. The output end of the suction pipeline 2 is connected to the cylinder water inlet 5-1. After the water flows through the suction pipeline 2, it flows from the cylinder water inlet 5-1 to the core-pulling cylinder 5-5 and flows out from the cylinder water outlet 5-3. The water containing debris passes through the interception module 1, enters the suction pipeline 2, and then after being pressurized by the sewage pump 6, flows through the sewage pump 6 and the inside of the cylinder, and finally flows out from the cylinder water outlet 5-3.

[0076] Among them, in this embodiment, the interception module 1 includes a fixing frame 1-1, a filter screen 1-2 and a float 1-3. The periphery of the water-facing surface of the filter screen 1-2 is fixed on the fixing frame 1-1, and the upper end of the water-facing surface of the filter screen 1-2 is higher than the water surface. The side of the filter screen 1-2 is provided with meshes. The float 1-3 is arranged at the upper end of the filter screen to support the weight of the filter screen 1-2 so that the upper plane of the filter screen 1-2 is flush with the water surface, allowing the water surface and debris in the water to flow smoothly to the tail of the filter screen 1-2. Following the direction of water flow, the filter screen 1-2 is contracted from the water inlet to the tail, and the area at the tail is the smallest, so that the intercepted debris is concentrated at the tail of the filter screen 1-2.

[0077] Further, in this embodiment, if Figure 2 As shown, the suction pipeline 2 includes a front section 21 of the water inlet pipe, a middle section 22 of the water inlet pipe and a rear section 23 of the water inlet pipe which are connected in sequence. The suction pipeline water inlet 2-1 of the front section 21 of the water inlet pipe is connected to the outlet of the interception module 1, and the suction pipeline water outlet 2-2 of the rear section 23 of the water inlet pipe is connected to the water inlet 5-1 of the cylinder.

[0078] In this embodiment, if Figure 2 As shown, the water inlet pipe tail section 23 includes a filter cartridge 23-1, and the filter cartridge 23-1 includes a filter cartridge inner cartridge 23-1-2 and a filter cartridge outer cartridge 23-1-4. The filter cartridge inner cartridge 23-1-2 is configured as a cylindrical structure, and the filter cartridge outer cartridge 23-1-4 is circumferentially arranged on the outside of the filter cartridge inner cartridge 23-1-2, and the filter cartridge outer cartridge 23-1-4 near the sewage pump 6 is connected to the suction pipe outlet 2-2. The suction pipeline water outlet 2-2 is connected with the cylinder water inlet 5-1, and a filter hole 23-1-3 is provided on the filter cylinder inner cylinder 23-1-2 wrapped with the filter cylinder outer cylinder 23-1-4. The water containing impurities enters the filter cylinder 23-1, flows through the filter hole 23-1-3, and is guided to the suction pipeline water outlet 2-2 by the outlet of the filter cylinder outer cylinder 23-1-4, and then flows to the water inlet of the pump through the cylinder water inlet 5-1.

[0079] In this embodiment, the filter cartridge 23-1 also includes a cleaning port 23-1-5, which is connected to the filter cartridge inner cartridge 5-1-2. A sealing plate 3 is installed on the end face of the cleaning port 23-1-5. When blockage occurs in the filter cartridge 23-1, the sealing plate 3 is disassembled for cleaning. At the same time, the sealing plate 3 prevents water from flowing out of the filter cartridge 23-1 or external water from entering the filter cartridge 23-1.

[0080] Furthermore, in this embodiment, the tail of the interception module 1 is connected to the water inlet 2-1 of the suction pipeline, and the water outlet 2-2 of the suction pipeline is connected to the installation cylinder 5; along the water flow direction, the cross-sectional shape of the front section 21 of the water inlet pipe of the suction pipeline 2 perpendicular to the water flow is contracted. The design of the front section 21 of the water inlet pipe should take into account sufficient strength, the opening area of ​​the water-facing surface, reasonable length and shape, and the submerged depth of the connection with the middle section 22 of the water inlet pipe, so that during the suction operation, it can withstand the force of water, prevent air from entering the suction pipeline 2, prevent the filter 1-2 from being sucked into the suction pipeline 2 to cause blockage, and can also clean up the debris in the tail of the filter 1-2.

[0081] Further, in this embodiment, if Fig.13As shown, the inner side of the upper side surface of the front section 21 of the water inlet pipe close to the water surface is the surface that plays the role of guiding and sucking water flow, and the upper flow surface 2-3-1 is sloped. The upper flow surface 2-3-1 in contact with water is set as a concave surface. M is a point on the upper flow surface 2-3, and the straight line AB is the tangent of the upper flow surface 2-3-1 passing through the point M in the vertical section of the front section 21 of the water inlet pipe along the water flow direction. The angle between the straight line AB and the horizontal line is K. The upper flowway surface 2-3-1 is basically parallel to the water surface at the water inlet 2-1 of the suction pipeline, and debris can flow smoothly into the front section 21 of the water inlet pipe; the flow velocity at the tail end of the front section 21 of the water inlet pipe is high. In order to prevent air from being drawn into the middle section 22 of the suction pipeline, the tail of the front section 21 of the water inlet pipe needs to be submerged at a certain depth below the water surface. Therefore, the upper flowway surface 2-3-1 is sloped; the upper flowway surface 2-3-1 adopts a slope with a variable angle K. From the water inlet of the front section 21 of the water inlet pipe to the tail outlet, a larger angle K can be adopted as the water flow velocity increases. The upper flowway surface 2-3-1 is a surface with a variable angle K. The angle K is smaller at the front and larger at the back along the water flow direction. This can shorten the length of the front section 21 of the water inlet pipe and save costs. Therefore, in this embodiment, the upper flow channel surface 2-3-1 may be a smooth curved surface, or a surface formed by connecting broken lines, or a surface composed of a part of a smooth curved surface and a part of a broken line.

[0082] Furthermore, in this embodiment, the filter cartridge 23-1 is provided to take into consideration that oversized objects flow along the water into the interception module 1 and are sucked into the suction pipe 2. If the object is adsorbed at the pump inlet and cannot pass through, the pump may not work properly or even be damaged. Therefore, the filter cartridge 23-1 intercepts oversized objects.

[0083] Furthermore, in this embodiment, the motor can be a submersible motor, that is, the submersible motor is arranged in the installation cylinder 5, such as Figure 7-11 and Fig.14 As shown, the sewage pump 6 is fixed in the installation cylinder 5 to form a core-pulling sewage pump device. A bottom plate 5-6 is provided on the outer arm of the installation cylinder 5, and a floating platform 4 is installed on the bottom surface of the bottom plate 5-6. The floating platform 4 allows the installation cylinder 5 and the sewage pump 6 to float steadily on the water surface; the impeller 6-7 is set to be immersed below the water surface, and the floating platform 4 can ensure that the impeller 6-7 is always below the water surface when the water level changes. In this way, the submersible sewage pump can be turned on to fill the water without delay. After the pump is turned on, the debris at the tail of the interception module is sucked out through the suction pipeline 2 and pressurized and transported out. And there is no need for accessories such as a water diversion tank, the system is simple and light.

[0084] The setting of the floating platform 4 can be used in scenes with large water level fluctuations. If the water level fluctuations are small, the bottom plate can be fixed on the fixed platform instead of the floating platform 4. This embodiment does not limit it and is adjusted according to actual applications.

[0085] The structural design of the above-mentioned installation cylinder 5 and the core-pulling sewage pump 6 can realize the rapid replacement of the pump only by disassembling the connecting bolts of the connecting cover plate 6-4 and the flange 5-4. In the case where different types of pumps are required for switching work, it is only necessary to make the installation dimensions of different types of pumps interchangeable, so that different types of pumps can be quickly replaced to realize the switching of working modes. This design is particularly beneficial for the scene where frequent pump replacement is required.

[0086] In more detail, in this embodiment, Figure 3 As shown, when the sewage pump 6 is completely placed in the installation cylinder 5, a cover plate 6-4 is provided on the sewage pump 6 in the installation cylinder 5, and a flange 5-4 is provided on the upper periphery of the installation cylinder 5, the cover plate 6-4 and the flange 5-4 are connected by fasteners, and the connection surface between the cover plate 6-4 and the flange 5-4 is sealed by a cylinder sealing ring 7. This embodiment does not limit the specific structure of the cover plate, and the cover plate 6-4 on the sewage pump 6 can also be made into a separate part, the sewage pump is installed in the installation cylinder 5, and then the cover plate 6-4 is installed.

[0087] Further, in this embodiment, if Figure 6 As shown, the device further includes a flushing valve 8. When the sewage pump 6 is working, the flushing valve 8 is closed; when the sewage pump 6 stops working, the check valve on the outlet pipe is closed, and the flushing valve 8 is opened. At this time, water quickly flows back to the suction pipe 2 and the tail of the interception module 1, playing a role of backwashing. Specifically, in this embodiment, the flushing valve 8 can be automatically operated or controlled by the controller 12.

[0088] More specifically, the upper part of the installation cylinder 5 is above the water surface, a check valve should be set on the water outlet pipe, and a flushing valve 8 is installed on the cover plate 6-4. When the sewage pump 6 is working, the flushing valve 8 is closed; when the sewage pump 6 stops working, the check valve on the water outlet pipe is closed, and the flushing valve 8 is opened. Since the upper part of the installation cylinder 5 is above the water surface, the water in the installation cylinder 5 flows back into the filter 1-2. When there are many debris or the filter 1-2 is sucked into the suction pipe 2 and causes the debris to be blocked, the sewage pump 6 stops working, the flushing valve 8 is opened, and the water quickly flows back into the suction pipe 2 and the tail of the filter 1-2, flushing the blockage, and also restoring the filter 1-2 to its original state, playing a role of backwashing.

[0089] Further, such as Figure 1 and Figure 6As shown, a lifting ring 9 is provided on the sewage pump 6, and a crane 10 is provided on the floating platform 4, so as to facilitate pump replacement and maintenance operations. The installation cylinder 5 can also be lifted out of the water surface to clean the aquatic organisms on the relevant parts. A pressure sensor 11 is installed on the cylinder water outlet 5-3, and the output end of the controller 12 is connected to the sewage pump 6 and the flushing valve 8 respectively. When the suction pipeline 2 is blocked, the outlet pressure will drop abnormally, and the controller 12 stops the sewage pump 6, and then opens the flushing valve 8 to backwash the suction pipeline 2 to eliminate the blockage.

[0090] Further, in this embodiment, the sewage pump 6 adopts a guide vane sewage pump, including a shaft 6-6, a power device 6-5 and an impeller 6-7 are arranged on the shaft 6-6, and the power device 6-5 is placed above the impeller 6-7, a guide vane guide body 6-3 is fixed to the lower end of the power device 6-5, and the guide vane guide body 6-3 is arranged between the power device 6-5 and the impeller 6-7, a pump seal seat 6-1 is arranged on the outer periphery of the guide vane guide body 6-3, and a pump seal 6-2 is arranged on the pump seal seat 6-1. The power device in this embodiment can be a common motor, a submersible motor, a hydraulic motor or a pneumatic motor.

[0091] Furthermore, in this embodiment, the pump sealing seat 6 - 1 can be arranged on the outer periphery of the guide vane type guide body 6 - 3 , or can be arranged at other circumferential positions of the outer wall of the sewage pump 6 .

[0092] After the power unit is shut down, the water above the water surface in the installation cylinder 5 is drained, and part of the installation cylinder 5 and the power unit 6-5 will not be immersed in water for a long time, which prevents the growth of aquatic organisms and ensures that the surface heat dissipation of the power unit 6-5 is normal. The flushing valve 8 can also be installed on the core-pulling cylinder 5-5, and can also be installed on the water outlet pipeline at a higher position. The higher the installation position, the higher the backwashing pressure and the better the effect. In this embodiment, the installation cylinder 5 is fixed on the floating platform 4, and the upper part of the installation cylinder 5 is exposed above the water surface. When the sewage pump is removed from the installation cylinder 5, the debris in the water inlet pipeline will not escape.

[0093] In this embodiment, described in more detail, Figure 3 and Figure 4 As shown, the sewage pump 6 adopts a submersible cutting pump of a guide vane type, and the guide vane type cutting pump adopts a guide vane type guide body 6-3. Figure 4The schematic diagram of the cutting impeller structure viewed from the water inlet, wherein the arrow direction indicates the rotation direction of the impeller, the cutting pump further comprises: a stationary blade disc 6-8, an impeller fixing member 6-9 and an impeller chamber 6-10, the power device 6-5 and the impeller 6-7 use the same shaft 6-6, the impeller 6-7 is mounted at the bottom end of the shaft 6-6 and is fixed on the shaft 6-6 by the impeller fixing member 6-9, the power device 6-5 drives the shaft 6-6 to rotate, the shaft 6-6 transmits the torque to the impeller 6-7 through the key and performs work on the water; the guide vane guide body 6-3 is fixed on the power device 6-5. The lower end of the device 6-5 is arranged between the power device 6-5 and the impeller 6-7. A pump sealing seat 6-1 is arranged on the outer periphery of the guide vane guide body 6-3. A pump seal 6-2 is arranged on the pump sealing seat 6-1. When the submersible cutting pump is installed in the installation cylinder 5, the pump sealing seat 6-1 cooperates with the cylinder sealing seat 5-2. The pump seal 6-2 plays a sealing role between the pump sealing seat 6-1 and the cylinder sealing seat 5-2, preventing the high-pressure water flowing out of the guide vane guide body 6-3 from flowing back to the inlet of the submersible cutting pump, thereby maintaining the high-efficiency operation of the pump. An impeller chamber 6-10 is arranged outside the impeller 6-7, one end of the impeller chamber 6-10 is connected to the guide vane guide body 6-3, and the other end is connected to the static blade disc 6-8; the static blade disc 6-8 is arranged in the water inlet direction of the impeller 6-7, when the cutting blade 6-7-1 of the impeller 6-7 moves relative to the static blade disc 6-8, the sundries entering the impeller 6-7 with the water flow will be cut. A cover plate 6-4 is arranged on the upper part of the power device 6-5, and the submersible cutting pump is installed in the installation cylinder 5, and the cover plate 6-4 is connected to the flange 5-4 by fasteners, and the cylinder sealing ring 7 seals the connection surface between the cover plate 6-4 and the flange 5-4 on the cylinder, so that the high-pressure water in the installation cylinder 5 will not leak.

[0094] Among them, the impeller 6-7 includes at least one cutting blade 6-7-1, and the cutting blade 6-7-1 is composed of a blade water inlet edge 6-7-2, a cutting blade 6-7-3, a blade working surface 6-7-4 and a blade back 6-7-5. The moving blade 6-7-3 is the intersection of the blade working surface 6-7-4 and the blade water inlet edge 6-7-2, which is a sharp edge.

[0095] Figure 5 It is a schematic diagram of the structure of the stationary blade disc 6-8 viewed from the water inlet, wherein the direction of the arrow is the rotation direction of the impeller, water flows through the stationary blade disc 6-8, and there is at least one stationary blade 6-8-1 in the water inlet of the stationary blade disc 6-8; the stationary blade 6-8-1 is provided with a sharp-edged stationary blade 6-8-2 at the contour edge close to the impeller 6-7 side, and the stationary blade 6-8-2 is arranged to face the rotation direction of the cutting blade 6-7-1.

[0096] The stationary blade 6-8-2 faces the blade blade 6-7-3. When the impeller 6-7 rotates, the relative movement of the two blades forms a scissors effect to cut off the debris flowing into the impeller 6-7. The length of the cut-off debris can be controlled by changing the number of the stationary blades 6-8-2 and the blade blades 6-7-3 to ensure that the pipeline will not be blocked in the subsequent flow.

[0097] Example 2

[0098] On the basis of Example 1, when the debris in the water is mainly aquatic organisms, for the sake of environmental friendliness, it is necessary to transport the aquatic organisms harmlessly. At this time, it is not appropriate to use a submersible cutting pump. Instead, a submersible guide vane screw pump 13 with better performance in transporting living organisms should be used. The guide vane screw pump 13 adopts a guide vane guide body 6-3, a spiral impeller 13-1 is installed at the end of the shaft 6-6, and an impeller chamber 6-10 is installed at one end of the guide vane guide body 6-3 and close to the water inlet. Figure 7 For the submersible guide vane screw pump 13 to be used in the same workstation as the aforementioned submersible cutting pump, the installation dimensions of the submersible guide vane screw pump 13 must be the same as those of the submersible cutting pump.

[0099] Figure 8 This is a schematic diagram of the spiral impeller structure viewed from the water inlet, with the arrow pointing to the direction of the impeller. The spiral impeller 13-1 includes a spiral blade 13-1-1, and the shape of the spiral blade inlet edge 13-1-2 from the outermost spiral blade rim 13-1-3 to the spiral blade hub 13-1-4 is a forward curved shape that is the same as the impeller direction. This front concave blade inlet edge has less impact damage to living organisms, and the spiral impeller has long blades and does less work on water, so it causes less damage when pumping living organisms.

[0100] Example 3

[0101] On the basis of Example 1, when the debris in the water is mainly granular objects, a submersible guide vane swirl pump 14 can be used. The guide vane swirl pump 14 adopts a guide vane guide body 6-3, and a swirl impeller 14-1 is installed at the end of the shaft 6-6. There is a swirl cavity between the swirl impeller 14-1 and the impeller chamber 6-10, such as Fig. 9 If the submersible guide vane vortex pump 14 is to be used in the same station as the aforementioned submersible cutting pump, the installation dimensions of the submersible guide vane vortex pump 14 must be made the same as the replacement pump.

[0102] Example 4

[0103] On the basis of Example 1, when the debris in the water is mainly small-sized objects, in order to improve the energy efficiency of the pumping device, a conventional vane submersible sewage pump 15 can be used, and the conventional sewage pump impeller 15-1 is installed at the end of the shaft 6-6, such as Fig.10For the use of the same workstation as the aforementioned submersible cutting pump, the installation dimensions of the conventional vane submersible sewage pump 15 must be made the same as that of the replacement pump.

[0104] Example 5

[0105] On the basis of Example 1, in order to further improve the energy efficiency of the pump group, the sewage pump 6 is replaced by a submersible volute sewage pump 16, which uses a volute guide body 16-2, and the cutting impeller 16-1 is installed at the end of the shaft 6-6. The volute guide body 16-2 is completely installed in the installation cylinder 5, and a volute water outlet 16-3 is also provided. The pump sealing seat 6-1 is arranged on the outer periphery of the volute guide body 16-2, and a pump seal 6-2 is provided on the pump sealing seat. Fig.11 shown.

[0106] Furthermore, in this embodiment, the pump sealing seat 6 - 1 can be arranged on the periphery of the volute-type body guide 16 - 2 , or can be arranged at other circumferential positions of the outer wall of the submersible volute-type sewage pump 16 .

[0107] Example 6

[0108] On the basis of Example 1, if the motor 20 of the sewage pump 6 is installed outside the cylinder 5-6, the following method can be used: Fig.12 The structure is shown in FIG. 1 . A bearing body 18 is arranged in the mounting cylinder 5. The bearing body 18 replaces the power device 6-5 in the embodiment. The guide vane guide body 6-3 or the volute guide body 16-2 is installed at the lower end of the bearing body 18. The bearing body 18 is provided with a bearing, a seal and a second shaft 19. The impeller is installed on the shaft 19. The shaft of the motor 20 is connected to the second shaft 19 to transmit torque. The motor 20 is installed outside the mounting cylinder 5 and above the water surface. Therefore, the motor 20 may not be a submersible motor but a common motor.

[0109] Example 7

[0110] like Fig.14As shown, on the basis of Example 1, the sewage pump 6 can also adopt the structure of a second guide vane cutting pump, the second guide vane cutting pump 24 adopts a guide vane guide body 6-3, the second guide vane cutting pump 24 also includes an impeller chamber 6-10, a stationary blade disc 6-8 and a moving blade disc 24-1, one end of the impeller chamber 6-10 is connected to the guide vane guide body 6-3, and the other end is connected to the stationary blade disc 6-8, and the stationary blade disc 6-8 is arranged at the water inlet of the second guide vane cutting pump 24; the moving blade Disk 24-1 is arranged on the shaft near the stationary blade disc 6-8, and the moving blade disc 24-1 is fixed on the shaft; when the stationary blade disc 6-8 and the moving blade disc 24-1 make relative motion, a scissors effect is formed. The present embodiment does not limit the specific position of the moving blade disc 24-1. As long as the stationary blade disc 6-8 and the moving blade disc 24-1 make relative motion, a scissors effect is formed, the moving blade disc 24-1 can be installed around the stationary blade disc 6-8 or the two can be simplified and arranged on the same blade disc.

[0111] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application. For example, a filter screen is set at the water inlet of the interception module, and no filter screen is set on the side. The filter screen at the water inlet performs preliminary filtration, and the filter cylinder at the tail section of the water inlet pipe intercepts the debris; for another example, the present utility model only describes the relevant part of the suction pipeline, and does not restrict the addition of other conventional components to the pipeline, such as setting a valve in the suction pipeline to control the water inlet of the suction device. For another example, two or more interception modules are used, each interception module is connected to the suction pipeline respectively, and all the suction pipelines are connected to the same installation cylinder after merging at the middle section and the tail section of the water inlet pipe. A valve can also be set on the suction pipeline to control the switching working mode of each interception module.

Claims

1. A novel interception and suction device, characterized in that: The device comprises an interception module (1) and a suction module for intercepting debris, the suction module comprising a suction pipeline (2), a mounting cylinder (5) and a sewage pump (6), the tail of the interception module (1) being in communication with the water inlet end of the suction pipeline (2), the water outlet end of the suction pipeline (2) being connected to the mounting cylinder (5), the sewage pump (6) being installed at the cylinder water inlet (5-1) of the mounting cylinder (5), the sewage pump (6) being partially or completely arranged in the mounting cylinder (5), the inner side wall of the mounting cylinder (5) being circumferentially provided with a cylinder sealing seat (5-2), the outer side wall of the sewage pump (6) being circumferentially provided with a pump sealing seat (6-1), the cylinder sealing seat (5-2) and the pump sealing seat (6-1) being sealed and fitted, thereby preventing high-pressure water flowing out of the sewage pump (6) from flowing back to the cylinder water inlet (5-1) again.

2. The novel interception and suction device according to claim 1 is characterized in that: The installation cylinder (5) further comprises a core-pulling cylinder (5-5) and a cylinder water outlet (5-3); the output end of the suction pipeline (2) is connected to the cylinder water inlet (5-1); after water flows through the suction pipeline (2), it flows from the cylinder water inlet (5-1) into the core-pulling cylinder (5-5) and flows out from the cylinder water outlet (5-3).

3. The novel interception and suction device according to claim 1 is characterized in that: The suction pipeline (2) comprises a water inlet pipe front section (21), a water inlet pipe middle section (22) and a water inlet pipe tail section (23) which are connected in sequence, the water outlet of the water inlet pipe tail section (23) is connected to the water inlet (5-1) of the cylinder body, the surface on the inner side of the upper side surface of the water inlet pipe front section (21) close to the water surface, which plays a role in guiding and sucking water flow, is an upper flow path surface (2-3-1), and the upper flow path surface (2-3-1) in contact with water is set as a concave surface, M is a point on the upper flow path surface (2-3-1), the straight line AB is a tangent of the upper flow path surface (2-3-1) passing through point M in a vertical section of the water inlet pipe front section (21) along the water flow direction, the angle between the straight line AB and the horizontal line is set to K, and the upper flow path surface (2-3-1) is a surface with a variable angle K, and the angle K first decreases and then increases along the water flow direction.

4. The novel interception and suction device according to claim 3 is characterized in that: The water inlet pipe tail section (23) comprises a filter cartridge (23-1), the filter cartridge (23-1) comprising a filter cartridge inner cartridge (23-1-2) and a filter cartridge outer cartridge (23-1-4), the filter cartridge inner cartridge (23-1-2) being connected to the water inlet pipe middle section (22), the filter cartridge outer cartridge (23-1-4) being circumferentially arranged on the outside of the filter cartridge inner cartridge (23-1-2), and the outlet of the filter cartridge outer cartridge (23-1-4) close to the sewage pump (6) is connected to the cartridge water inlet (5-1), and a filter hole (23-1-3) is provided on the filter cartridge inner cartridge (23-1-2) wrapped by the filter cartridge outer cartridge (23-1-4).

5. The novel interception and suction device according to claim 4 is characterized in that: The filter cartridge (23-1) further comprises a cleaning port (23-1-5), wherein the cleaning port (23-1-5) is connected to the filter cartridge inner cartridge (23-1-2), and a sealing plate (3) is installed on the end surface of the cleaning port (23-1-5). When a blockage occurs in the filter cartridge (23-1), the sealing plate (3) is removed for cleaning, and at the same time, the sealing plate (3) prevents water from flowing out of the filter cartridge (23-1) or external water from entering the filter cartridge (23-1).

6. The novel interception and suction device according to any one of claims 1 to 5, characterized in that: The sewage pump (6) adopts a guide vane guide body (6-3), comprising a shaft (6-6), a power device (6-5) and an impeller (6-7) being arranged on the shaft (6-6), and the power device (6-5) being placed above the impeller (6-7), a guide vane guide body (6-3) being fixed to the lower end of the power device (6-5), and the guide vane guide body (6-3) being arranged between the power device (6-5) and the impeller (6-7), the pump sealing seat (6-1) being arranged on the outer periphery of the guide vane guide body (6-3), and a pump sealing member (6-2) being arranged on the pump sealing seat (6-1).

7. The novel interception and suction device according to claim 6 is characterized in that: The sewage pump (6) is a guide vane cutting pump, which adopts a guide vane guide body (6-3). The guide vane cutting pump also includes an impeller chamber (6-10) and a static blade disc (6-8). One end of the impeller chamber (6-10) is connected to the guide vane guide body (6-3), and the other end is connected to the static blade disc (6-8). The static blade disc (6-8) is arranged in the water inlet direction of the impeller (6-7); the impeller (6-7) includes at least one cutting blade (6-7-1), and a cutting blade (6-7-3) is arranged on the water inlet edge (6-7-2) of the cutting blade (6-7-1); when the impeller (6-7) and the static blade disc (6-8) move relative to each other, the debris entering the impeller (6-7) along with the water flow will be cut.

8. The novel interception and suction device according to claim 6 is characterized in that: The sewage pump (6) is a guide vane swirl pump, which adopts a guide vane guide body (6-3). The guide vane swirl pump also includes an impeller chamber (6-10) and a swirl impeller (14-1). The swirl impeller (14-1) is installed at the end of the shaft (6-6), and a swirl cavity is provided between the swirl impeller (14-1) and the impeller chamber (6-10).

9. The novel interception and suction device according to claim 6 is characterized in that: The sewage pump (6) is a guide vane cutting pump, which also includes an impeller chamber (6-10), a stationary blade disc (6-8) and a moving blade disc (24-1). One end of the impeller chamber (6-10) is connected to the guide vane guide body (6-3), and the other end is connected to the stationary blade disc (6-8). The stationary blade disc (6-8) is arranged at the water inlet of the pump; the moving blade disc (24-1) is fixed on the shaft (6-6) and is close to the stationary blade disc (6-8); when the blades of the stationary blade disc (6-8) and the moving blade disc (24-1) move relative to each other, a scissor effect is formed.

10. The novel interception and suction device according to any one of claims 1 to 5, characterized in that: When the sewage pump (6) is completely placed in the installation cylinder (5), a cover plate (6-4) is provided on the sewage pump (6) in the installation cylinder (5), and a flange (5-4) is provided on the upper periphery of the installation cylinder (5); the cover plate (6-4) and the flange (5-4) are connected by fasteners, and a cylinder sealing ring (7) is used to seal the connection surface between the cover plate (6-4) and the flange (5-4).

11. The novel interception and suction device according to any one of claims 1 to 5, characterized in that: A bottom plate (5-6) is arranged on the outer side arm of the installation cylinder (5), and a floating platform (4) is installed on the lower surface of the bottom plate (5-6). The floating platform (4) enables the installation cylinder (5) and the sewage pump (6) to float steadily on the water surface.

12. The novel interception and suction device according to any one of claims 1 to 5, characterized in that: The sewage pump (6) adopts a volute-type flow guide (16-2), and the volute-type flow guide (16-2) is completely placed in the installation cylinder (5). The sewage pump (6) comprises a shaft (6-6), and a power device (6-5) and an impeller (6-7) are arranged on the shaft (6-6), and the power device (6-5) is arranged above the impeller (6-7). The volute-type flow guide (16-2) is fixed at the lower end of the power device (6-5), and the volute-type flow guide (16-2) is arranged between the power device (6-5) and the impeller (6-7).

13. The novel interception and suction device according to any one of claims 1 to 5, characterized in that: The device also includes a flushing valve (8). When the sewage pump (6) is working, the flushing valve (8) is closed; when the sewage pump (6) stops working, the check valve on the water outlet pipeline is closed and the flushing valve (8) is opened. At this time, water quickly flows back to the tail of the suction device and the interception module (1), clearing the blockage and achieving a backwashing effect.

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