A self-recovering anti-blocking diaphragm pump

Abstract

The present invention relates to the technical field of diaphragm pumps, and in particular to a self-restoring anti-blocking diaphragm pump. By arranging obstacle clearing modules at a left fluid cover, a right fluid cover, an upper manifold and a lower manifold, and using obstacle clearing valves in conjunction with a one-way interface to connect the obstacle clearing modules, during normal operation, the pressure difference generated by alternating air pressure drives the connecting rod to reciprocate, so that the material flows from the lower manifold through the left and right fluid covers to the upper manifold and is then discharged from the outlet; when the material is blocked, the obstacle clearing module is started to form a high-pressure jet to impact and crush the nearby blocked materials, so that the loosened or diluted materials become easy to flow, thereby achieving the purpose of clearing the blockage, and solving the technical defect in the prior art that the diaphragm pump is difficult to clean quickly and conveniently after being blocked.

Description

Technical Field

[0001] The invention relates to the technical field of diaphragm pumps, and in particular to a self-recovering anti-blocking diaphragm pump. Background Art

[0002] Certain fluids transported by diaphragm pumps will gradually settle, solidify, or be compressed inside the pump over time or due to other factors, which can easily block the flow channel or block the pump, causing shutdown or even severe impact damage to the pump. The diaphragm pump is a closed structure, and when it is blocked, it must be shut down to relieve pressure, and then the main fluid components must be disassembled to clean the inside. After that, traditional cleaning methods such as shoveling, digging, and digging are used, which is a complicated process, with a lot of residue, low efficiency, and the risk of spillage of the pumped material. Summary of the invention

[0003] The purpose of the present invention is to provide a self-recovering anti-blocking diaphragm pump. In view of the technical defects that the diaphragm pump may become blocked during the fluid conveying process and is difficult to clean quickly and conveniently after the blockage occurs, a diaphragm pump device is provided which can effectively reduce the occurrence of blockage and can clean the blockage online without disassembling the machine.

[0004] To achieve the above-mentioned object, the present invention provides a self-restoring anti-blocking diaphragm pump, comprising a clearing assembly, a left fluid cover, a right fluid cover, an upper manifold, a lower manifold and a connecting rod, wherein the left fluid cover, the upper manifold, the right fluid cover and the lower manifold are connected in sequence, the connecting rod is slidably connected with the left fluid cover and the right fluid cover, and the ends of the connecting rod are respectively arranged in the left fluid cover and the right fluid cover;

[0005] The obstacle clearing assembly includes a first obstacle clearing module, a second obstacle clearing module, a third obstacle clearing module and a fourth obstacle clearing module. The first obstacle clearing module is arranged on the inner wall of the upper manifold, the second obstacle clearing module is arranged on the inner wall of the lower manifold, the third obstacle clearing module is arranged on the inner wall of the left fluid cover, and the fourth obstacle clearing module is arranged on the inner wall of the right fluid cover.

[0006] The left fluid cover, the right fluid cover, the upper manifold, the lower manifold and the connecting rod constitute the diaphragm pump body. The obstacle removal components are arranged at various positions of the diaphragm pump body that are easily blocked. When material blockage occurs, the obstacle removal operation can be performed from the inner wall.

[0007] The first obstacle clearing module, the second obstacle clearing module, the third obstacle clearing module and the fourth obstacle clearing module have the same structure and are connected through pipelines, and a one-way interface is provided at the connection between each obstacle clearing module and the pipeline.

[0008] The first obstacle clearing module, the second obstacle clearing module, the third obstacle clearing module and the fourth obstacle clearing module are all connected by a plurality of conduits, and a one-way self-closing valve is provided at each conduit connection, and a micro-hole is provided in the one-way self-closing valve.

[0009] The one-way self-closing valve is composed of an elastic body, and a number of self-closing micropores are arranged in the elastic body, such as a letter and a cross. Only when the internal pressure is greater than the external pressure, the micropores expand and open, allowing the fluid to be discharged from the inside to the outside. Otherwise, the micropores are closed, effectively preventing the pumped material from invading the inside of the conduit. The one-way interface connecting each obstacle removal module to the pipeline can prevent the material or airflow from flowing back when the internal pressure is too high, playing a secondary protection role. The conduit in the obstacle removal module is internally connected, and the pressurized medium can be sprayed outward through the micropores to crush the material to play a role in dredging and clearing.

[0010] Wherein, the left fluid cover and the right fluid cover are both inner hollow cavities and are respectively provided with diaphragms, and the diaphragms separate the inner hollow cavities into a fluid cavity and an air cavity.

[0011] Wherein, the diaphragms in the left fluid cover and the right fluid cover are respectively fixedly connected to one end of the connecting rod.

[0012] Wherein, the two ends of the fluid cavity are respectively connected with the lower manifold and the upper manifold, and one-way valves are respectively arranged at the connection points. The flow direction of the one-way valve is from the lower manifold to the fluid cavity, and from the fluid cavity to the upper manifold.

[0013] During normal operation, the two air cavities in the left fluid cover and the right fluid cover alternately change the pressure difference to generate a dynamic action on the diaphragm, and the diaphragm drives the connecting rod to perform reciprocating motion, so that the fluid cavity cooperates with the internal one-way valve to alternately generate pressure and negative pressure inside the isolation pump to achieve material transportation.

[0014] Among them, the self-restoring anti-blocking diaphragm pump also includes a clearing valve, the clearing valve is located at the front end of the pipeline, and the normally closed outlet of the clearing valve is connected to the clearing component.

[0015] The obstacle clearing valve is arranged at the front end of the pipeline. Under normal working conditions, the obstacle clearing valve closes the obstacle clearing component and does not move. When the material is blocked, the obstacle clearing valve state is switched, and the pressurized medium enters each cleaning module through the one-way interface, forming a high-pressure jet at the small hole in the internal conduit, impacting and crushing the blocked material in the attachment to achieve the clearing effect.

[0016] The present invention provides a self-restoring anti-blocking diaphragm pump, which arranges obstacle clearing modules at the left fluid cover, the right fluid cover, the upper manifold and the lower manifold, and uses obstacle clearing valves in cooperation with one-way interfaces to connect the obstacle clearing modules. During normal operation, the pressure difference generated by alternating air pressure drives the connecting rod to reciprocate, so that the material flows from the lower manifold through the left and right fluid covers to the upper manifold, and then is discharged from the outlet. When the material is blocked, the obstacle clearing module is started to form a high-pressure jet to impact and crush the nearby blocked materials, so that the loosened or diluted materials become easy to flow, thereby achieving the purpose of clearing the blockage, and solving the technical defect that the diaphragm pump in the prior art is difficult to clean quickly and conveniently after being blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention 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 invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a structural schematic diagram of a self-recovering anti-blocking diaphragm pump of the present invention.

[0019] Figure 2 It is a structural schematic diagram of the first obstacle removal module of the present invention.

[0020] Figure 3 It is a cross-sectional schematic diagram of the first obstacle removal module of the present invention.

[0021] Figure 4 It is a partially enlarged schematic diagram of the first obstacle clearing module of the present invention.

[0022] Figure 5 yes Figure 4 Schematic diagram of the appearance.

[0023] 1-left fluid cover, 2-right fluid cover, 3-upper manifold, 4-lower manifold, 5-connecting rod, 6-one-way interface, 7-diaphragm, 80-fluid cavity, 81-air cavity, 82-one-way valve, 9-obstruction clearance valve, 10-medium tank, 11-first obstacle clearance module, 12-second obstacle clearance module, 13-third obstacle clearance module, 14-fourth obstacle clearance module. DETAILED DESCRIPTION

[0024] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0025] See also Figure 1 The present invention proposes a self-restoring anti-blocking diaphragm pump, comprising an obstacle clearing component, a left fluid cover 1, a right fluid cover 2, an upper manifold 3, a lower manifold 4 and a connecting rod 5, wherein the left fluid cover 1, the upper manifold 3, the right fluid cover 2 and the lower manifold 4 are connected in sequence, the connecting rod 5 is slidably connected with the left fluid cover 1 and the right fluid cover 2, and the ends of the connecting rod 5 are respectively arranged in the left fluid cover 1 and the right fluid cover 2;

[0026] The obstacle clearing assembly includes a first obstacle clearing module 11, a second obstacle clearing module 12, a third obstacle clearing module 13 and a fourth obstacle clearing module 14. The first obstacle clearing module 11 is arranged on the inner wall of the upper manifold 3, the second obstacle clearing module 12 is arranged on the inner wall of the lower manifold 4, the third obstacle clearing module 13 is arranged on the inner wall of the left fluid cover 1, and the fourth obstacle clearing module 14 is arranged on the inner wall of the right fluid cover 2.

[0027] The first obstacle clearing module 11 , the second obstacle clearing module 12 , the third obstacle clearing module 13 and the fourth obstacle clearing module 14 have the same structure and are connected through pipelines. A one-way interface 6 is provided at the connection between each obstacle clearing module and the pipeline.

[0028] The first obstacle clearing module 11, the second obstacle clearing module 12, the third obstacle clearing module 13 and the fourth obstacle clearing module 14 are all connected by a plurality of conduits, and a one-way self-closing valve is provided at each conduit connection, and the one-way self-closing valve has micropores.

[0029] The left fluid cover 1 and the right fluid cover 2 are both inner hollow cavities and are respectively provided with diaphragms 7 , and the diaphragms 7 separate the inner hollow cavities into a fluid cavity 80 and an air cavity 81 .

[0030] The diaphragms 7 in the left fluid cover 1 and the right fluid cover 2 are fixedly connected to one end of the connecting rod 5 respectively.

[0031] Both ends of the fluid cavity 80 are connected to the lower manifold 4 and the upper manifold 3 respectively, and one-way valves 82 are respectively provided at the connection points. The flow direction of the one-way valve 82 is from the lower manifold 4 to the fluid cavity 80, and from the fluid cavity 80 to the upper manifold 3.

[0032] The self-restoring anti-blocking diaphragm pump also includes a clearing valve 9, which is located at the front end of the pipeline, and the normally closed outlet of the clearing valve 9 is connected to the clearing component.

[0033] The obstacle clearing valve 9 is installed and fixed on the diaphragm pump body, the normally closed outlet P is connected to each one-way interface 6 through an external pipeline, and the air inlet A is connected to the pressurized medium tank 10.

[0034] When the diaphragm pump is operating normally, the air cavity 81 in the left fluid cover 1 and the right fluid cover 2 on both sides alternately changes the pressure difference to generate power to act on the diaphragm 7, driving the diaphragm 7 together with the connecting rod 5 to reciprocate in the fluid cavity 80. The fluid cavity 80 and the one-way valves 82 in the pump together form an independent cavity to alternately generate pressure and negative pressure, so that the material is fed from the lower manifold 4 through the left fluid cover 1 and the right fluid cover 2, and finally discharged from the upper manifold 3, and is connected to the one-way interface 6 of the above-mentioned fluid component, so that the internal pressure that cuts off its connection will not be transmitted to the external pipeline.

[0035] The main fault handling process is as follows: when material blockage occurs in one or more places of the lower manifold 4, the fluid chambers 80 of the left and right parts, or the upper manifold 3, the pump failure usually manifests as no or insufficient discharge of material; the one-way valves 82 in the pump cannot be opened or closed due to the blockage; the reciprocating motion of the diaphragm 7 is stuck or blocked by the blockage and the operating frequency is reduced or stopped. At this time, the button of the clearing valve 9 is manually or automatically switched to connect the outlet of the medium tank 10. The pressurized medium is adjusted and controlled by the clearing valve 9, and then reaches the first cleaning module, the second cleaning module, and the third cleaning module through the external pipeline and each one-way interface 6. A high-pressure jet is formed at the small holes of the internal conduits of the blocks and the fourth cleaning module to impact and crush the nearby blocked materials. The loosened or diluted materials become easy to flow, first rushing out from the upper manifold 3 and the lower manifold 4 to the outside of the pump. As the interiors of the two are emptied, including the areas near the one-way valves 82 in the pump, they can be opened smoothly under the pressure generated by the jet accumulation in the fluid cavity 80. At this point, the high pressure inside the diaphragm pump is gradually discharged. When the blockage is completely cleared, the two sides of the diaphragm 7 are no longer blocked, the pump will resume reciprocating motion, and the material pumping function will be restored. At this time, the clearing valve 9 can be switched to the normally closed state.

[0036] Combined with the working principle, the self-recovering anti-blocking diaphragm pump of the present invention has the following advantages:

[0037] There is no need to remove any fluid parts when blockage occurs. Just one click to open the clearing valve to automatically clean and restore the diaphragm pump operation. At the same time, the full-channel anti-blocking cleaning technology is adopted, which has short cleaning time and high efficiency, greatly reducing the downtime of the production line. It has a pressure cleaning setting, and changing the length of time the valve is opened and closed can achieve the function of preventing blockage, and the cleaning process is fully closed and controlled without the risk of material leakage. More importantly, through this structural setting, the material transported by the diaphragm pump can be liquid or powder, which solves the shortcomings of the existing technology.

[0038] What is disclosed above is only a preferred embodiment of the present invention, and it certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope of the invention.

Claims

1. A self-recovering anti-blocking diaphragm pump, characterized in that: It comprises an obstacle clearing assembly, a left fluid cover, a right fluid cover, an upper manifold, a lower manifold and a connecting rod, wherein the left fluid cover, the upper manifold, the right fluid cover and the lower manifold are connected in sequence, the connecting rod is slidably connected with the left fluid cover and the right fluid cover, and the ends of the connecting rod are respectively arranged in the left fluid cover and the right fluid cover; The obstacle clearing assembly comprises a first obstacle clearing module, a second obstacle clearing module, a third obstacle clearing module and a fourth obstacle clearing module, wherein the first obstacle clearing module is arranged on the inner wall of the upper manifold, the second obstacle clearing module is arranged on the inner wall of the lower manifold, the third obstacle clearing module is arranged on the inner wall of the left fluid cover, and the fourth obstacle clearing module is arranged on the inner wall of the right fluid cover; The first obstacle clearing module, the second obstacle clearing module, the third obstacle clearing module and the fourth obstacle clearing module have the same structure and are connected through pipelines, and a one-way interface is provided at the connection between each obstacle clearing module and the pipeline; The first obstacle removal module, the second obstacle removal module, the third obstacle removal module and the fourth obstacle removal module are all connected by a plurality of conduits, and a one-way self-closing valve is provided at each conduit connection, and the one-way self-closing valve has a micro hole; The self-restoring anti-blocking diaphragm pump also includes a clearing valve, which is located at the front end of the pipeline, and the normally closed outlet of the clearing valve is connected to the clearing component.

2. The self-restoring anti-blocking diaphragm pump according to claim 1, characterized in that: The left fluid cover and the right fluid cover are both inner hollow cavities and are respectively provided with diaphragms, and the diaphragms separate the inner hollow cavities into a fluid cavity and an air cavity.

3. The self-restoring anti-blocking diaphragm pump according to claim 2, characterized in that: The diaphragms in the left fluid cover and the right fluid cover are respectively fixedly connected to one end of the connecting rod.

4. The self-restoring anti-blocking diaphragm pump according to claim 2, characterized in that: The two ends of the fluid cavity are respectively connected with the lower manifold and the upper manifold, and one-way valves are respectively arranged at the connection points. The flow direction of the one-way valve is from the lower manifold to the fluid cavity, and from the fluid cavity to the upper manifold.

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