A self-priming pump assembly with a delay mitigation effect for underground tanks

Abstract

The utility model discloses a kind of self-priming pump assemblies with delay effect for underground tank with mitigation, it is related to fluid machinery engineering technical field, including support frame, support frame's top end is welded with underground tank, and self-priming pump is installed in one end of underground tank;The liquid outlet end of underground tank is fixedly connected with efficiency component by flange plate, efficiency component includes liquid suction pipeline, liquid storage pipe and pump side pipeline, and three are fixedly connected with each other by flange plate, and the inner chamber lowest point of liquid storage pipe is fixedly installed with anti-blocking component, and underground tank and self-priming pump are connected by efficiency component, closed passage is constructed by liquid suction pipeline, liquid storage pipe and pump side pipeline, medium efficient transport is guaranteed, liquid storage pipe can retain initial working medium, reduce gas processing amount when self-priming pump starts, liquid seal barrier can also be formed to block gas, avoid gas knot to cause flow interruption, effectively shorten self-priming delay, optimize self-priming pump upper amount performance.

Description

TECHNICAL FIELD

[0001] The utility model relates to fluid machinery engineering technical field, concretely is a kind of self-priming pump assembly with slowing down delay effect for underground tank. BACKGROUND

[0002] In the operation device of chemical enterprise, the setting of underground tank is very common, with the setting of underground tank, the material in underground tank needs to be transported out by pump, and the pump type that underground tank can adopt generally has two kinds: submersible pump and self-priming pump Self-priming pump has excellent gas treatment capacity, can quickly discharge air in pump body and suction pipeline, so as to achieve high-efficiency self-priming effect, suitable for suction operation of underground storage tank, can improve the efficiency of medium transmission, and can enhance the reliability of operation by stable performance, provide strong guarantee for the scene of underground storage tank liquid conveying; However, there are defects of starting delay and running gas in the suction operating condition, after pump stops, the liquid in inlet pipeline will backflow, so that the gas in long-distance pipeline needs to be re-evacuated when restarting, self-priming takes a long time, and if there is slight air leakage on the suction side or liquid level fluctuates, gas may enter pump cavity, and then flow sudden drop problem is caused.

[0003] Therefore, the utility model provides a kind of self-priming pump assembly with slowing down delay effect for underground tank to solve the problems raised above. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of self-priming pump assembly with slowing down delay effect for underground tank to solve the problems raised in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: A kind of self-priming pump assembly with slowing down delay effect for underground tank, including support frame, the top end of the support frame is welded with underground tank, one end of the underground tank is provided with self-priming pump; The liquid outlet of the underground tank is fixedly connected with the efficiency increasing assembly through flange plate, the efficiency increasing assembly includes liquid suction pipeline, liquid storage pipe and pump side pipeline, and the three are fixedly connected with each other through flange plate, the inner cavity lowest point of the liquid storage pipe is fixedly installed with the anti-blocking assembly.

[0006] As a further scheme of the utility model, the liquid storage pipe adopts U-shaped elbow pipe, and the inner cavity of the liquid storage pipe is provided with a liquid storage cavity.

[0007] As a further scheme of the utility model, the bottom end of the liquid suction pipeline is tightly fixed with the liquid outlet of the underground tank through flange plate, and the pump side pipeline is fixedly connected with the suction inlet of the self-priming pump through flange plate.

[0008] As a further scheme of the utility model, the anti-blocking assembly comprises a collecting pipe, the collecting pipe is fixedly installed on the bottom surface of the liquid storage pipe, the top end of the collecting pipe is provided with an inclined surface, and the inner cavity of the collecting pipe is fixedly installed with a filter pipe.

[0009] As a further scheme of the utility model, the anti-blocking assembly further comprises a rotating shaft, the rotating shaft is located at the inner cavity shaft center of the liquid storage pipe, a plurality of stirring plates are fixedly sleeved on the outer surface of the rotating shaft, and each stirring plate is provided in the form of an inclined blade.

[0010] As a further scheme of the utility model, the two sides of the stirring plate are provided with fixing frames, the fixing frames are fixedly sleeved on the outer wall of the rotating shaft, and scraping plates are fixedly connected to the upper and lower ends of the fixing frames and are attached to the inner wall of the liquid storage pipe.

[0011] Compared with the prior art, the utility model has the beneficial effects that: 1. When the device is used, the synergistic assembly is connected between the underground tank and the self-priming pump, the liquid suction pipeline, the liquid storage pipe and the pump side pipeline form a closed passage, the initial working medium can be stored in the liquid storage pipe, the gas treatment amount during the start of the self-priming pump is reduced, a liquid seal barrier is formed to block the gas, the flow interruption caused by the gas is avoided, the self-priming delay is effectively shortened, and the self-priming pump capacity performance is optimized.

[0012] 2. When the device is used, the anti-blocking assembly can intercept solid impurities and sediments in the liquid, guide the impurities into the collecting structure for filtration, stir the liquid to prevent the impurities from settling, scrape the sediments on the pipe wall through the scraping plates, conveniently clean the impurities through the recovery structure, reduce the downtime maintenance, avoid the pipeline blockage, and ensure the stable operation of the self-priming pump. DRAWINGS

[0013] Figure 1 It is a structural schematic view of a self-priming pump assembly with a delay reduction effect for an underground tank.

[0014] Figure 2 It is a structural plan view of a synergistic assembly in a self-priming pump assembly with a delay reduction effect for an underground tank.

[0015] Figure 3 It is a structural schematic view of an anti-blocking assembly in a self-priming pump assembly with a delay reduction effect for an underground tank.

[0016] Figure 4 It is a structural sectional view of an anti-blocking assembly in a self-priming pump assembly with a delay reduction effect for an underground tank.

[0017] Figure 5 It is a structural exploded view of an anti-blocking assembly in a self-priming pump assembly with a delay reduction effect for an underground tank.

[0018] Fig. 1, support frame; 2, underground tank; 3, self-priming pump; 4, synergistic assembly; 401, liquid suction pipe; 402, liquid storage pipe; 403, pump side pipe; 404, liquid storage cavity; 5, anti-blocking assembly; 501, collection pipe; 502, filter pipe; 503, limiting block; 504, recovery pipe; 505, electric throttle valve; 506, rotating shaft; 507, stirring plate; 508, fixing frame; 509, scraper; 510, positioning frame; 511, power paddle; 6, liquid inlet pipe; 7, output pipe. DETAILED DESCRIPTION

[0019] 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.

[0020] Please refer to Figure 1 , Figure 2 In the embodiments of the present application, a self-priming pump assembly with a delay-reducing effect for an underground tank comprises a support frame 1, the top end of the support frame 1 is welded with an underground tank 2, and one end of the underground tank 2 is installed with a self-priming pump 3. The liquid outlet end of the underground tank 2 is fixedly connected with a synergistic assembly 4 for improving the upper capacity performance of the self-priming pump 3 through a flange plate, the synergistic assembly 4 comprises a liquid suction pipe 401, a liquid storage pipe 402 and a pump side pipe 403, and the three are fixedly connected with each other through a flange plate, which ensures sealing connection and facilitates disassembly and assembly, can optimize the upper capacity performance of the self-priming pump 3, retains the initial working medium through the liquid storage pipe 402, reduces the gas processing capacity when the self-priming pump 3 starts, thereby shortens the self-priming delay time, and the inner cavity of the liquid storage pipe 402 is fixedly installed with an anti-blocking assembly 5 for preventing pipe blockage, which can intercept solid impurities or sediments in the liquid to avoid blockage caused by accumulation in the pipe, ensure smooth flow of the pipeline, and maintain stable operation of the self-priming pump 3. It should be noted that the underground tank 2 is used for stable liquid storage and support base, the self-priming pump 3 is the power core of liquid delivery, the outer wall of the side away from the synergistic assembly 4 of the underground tank 2 is fixedly connected with a liquid inlet pipe 6 through a flange plate, which is used for continuously supplementing the liquid to be delivered to the underground tank 2, ensuring that the device has continuous delivery capacity and meets the continuous operation demand, and the outlet end of the self-priming pump 3 is fixedly connected with an output pipe 7, which is used for delivering the liquid pressurized by the self-priming pump 3 to the target terminal.

[0021] Please refer to Figure 1、 Figure 2 The U-shaped bend of the liquid storage pipe 402 can store some liquid at the lowest point in the pipe, thereby generating a liquid storage effect to shorten the self-suction time. The inner cavity of the liquid storage pipe 402 is provided with a liquid storage cavity 404 to form a gas-tight liquid seal barrier. The liquid seal barrier can block gas and avoid flow interruption caused by gas binding. The liquid storage pipe 402 can solve the problems of start-up delay and running gas binding; It should be noted that when gas is mixed into the liquid suction pipe 401, the gas is blocked by the liquid seal on the inlet side of the U-shaped bend of the liquid storage pipe 402 and cannot enter the pump-side pipe 403, thereby ensuring that the pump cavity of the self-priming pump 3 is continuously in contact with the liquid medium and avoiding flow interruption caused by gas binding; The bottom end of the liquid suction pipe 401 is fixedly connected to the liquid outlet of the underground tank 2 through a flange, and the pump-side pipe 403 is fixedly connected to the suction inlet of the self-priming pump 3 through a flange; It should be noted that the liquid suction pipe 401 and the pump-side pipe 403 form a sealed conveying path between the underground tank 2 and the self-priming pump 3, which not only ensures that the liquid conveying process is leak-free, but also allows the initial working medium retained by the efficiency-enhancing assembly 4 to enter the self-priming pump 3 efficiently, thereby assisting the self-priming pump 3 to start quickly, shortening the delay, and maintaining the continuity and stability of the liquid conveying process.

[0022] Please refer to Figure 3 、 Figure 4 、 Figure 5 The anti-blocking assembly 5 includes a collection pipe 501 fixedly installed on the bottom surface of the liquid storage pipe 402, and the top end of the collection pipe 501 is provided with an inclined surface for guiding solid impurities or sediments to flow into the collection pipe 501. The inner cavity of the collection pipe 501 is fixedly installed with a filter pipe 502 for filtering impurities; It should be noted that the inclined surface of the collection pipe 501 can guide the solid impurities or sediments in the liquid storage pipe 402 by gravity, so that they can flow more smoothly into the collection pipe 501, thereby avoiding the accumulation of impurities at the bottom of the liquid storage pipe 402. The outer wall of the filter pipe 502 is provided with a plurality of filter holes for filtering the liquid entering the collection pipe 501. The diameter of the filter pipe 502 is smaller than the inner diameter of the collection pipe 501, thereby reserving reasonable space for liquid flow and impurity retention. The inner wall of the collection pipe 501 is fixedly installed with a limiting block 503 for fixing and limiting the filter pipe 502. The outer wall of the filter pipe 502 has a matching limiting groove, and the limiting block 503 is embedded in the limiting groove, thereby achieving the positioning and fixing of the filter pipe 502 and preventing displacement or shaking of the filter pipe 502 during liquid flow; It should also be noted that there are three sets of collection pipes 501, and the three collection pipes 501 are fixedly connected to form an integral structure, which can expand the impurity collection range and improve the interception coverage of impurities in the storage pipe 402. A recovery pipe 504 is installed on one side of the storage pipe 402, and one end of the recovery pipe 504 passes through the collection pipe 501 and is connected to the inside of the filter pipe 502 to form a complete impurity recovery channel. An electric throttle valve 505 is fixedly sleeved on the outer wall of the recovery pipe 504. By adjusting the electric throttle valve 505, the flow rate is controlled, and the impurities intercepted in the filter pipe 502 are quickly discharged, which not only facilitates impurity cleaning, but also reduces downtime maintenance time and ensures the continuous and stable operation of the self-priming pump 3. The anti-clogging component 5 also includes a rotating shaft 506, which is located at the center of the inner cavity of the liquid storage tube 402. Multiple stirring plates 507 for mixing sediments and liquids are fixedly sleeved on the outer surface of the rotating shaft 506, and each stirring plate 507 is designed as an inclined blade. It should be noted that the rotating shaft 506 drives the inclined blade-shaped stirring plate 507 to rotate, which agitates the liquid and potential sediments in the storage pipe 402. The inclined blades can enhance the turbulence effect of the liquid, making it difficult for impurities with sedimentation tendency to adhere to the pipe wall or settle to the bottom. At the same time, it remixes the already formed small sediments into the liquid, making them easier to be guided into the collection pipe 501 and intercepted by the filter pipe 502, further reducing the risk of pipeline blockage. Together with other anti-blockage components, it improves the overall anti-blockage efficiency. Both sides of the stirring plate 507 are equipped with a fixing frame 508, and the fixing frame 508 is fixedly sleeved on the outer wall of the rotating shaft 506. The upper and lower ends of the fixing frame 508 are fixedly connected with scrapers 509, and the scrapers 509 are in contact with the inner wall of the liquid storage tube 402, which can directly scrape off the deposits attached to the tube wall. It should be noted that positioning frames 510 are fixedly installed at both ends of the rotating shaft 506, and the positioning frames 510 are fixedly connected to the inner wall of the liquid storage tube 402 to provide stable axial support for the rotating shaft 506 and prevent it from shifting during rotation. On the side of the two sets of positioning frames 510 that are close to each other, there are power blades 511 for providing rotational power to the rotating shaft 506, and the power blades 511 are fixedly sleeved on the outer wall of the rotating shaft 506. It should also be noted that when the liquid inside the storage pipe 402 flows, it will drive the power blade 511 to rotate, which in turn drives the rotating shaft 506 to rotate, ultimately causing the scraper 509 and the stirring plate 507 to operate synchronously. The stirring plate 507 agitates the liquid to prevent impurities from settling, while the scraper 509 scrapes away the deposits on the pipe wall in real time to prevent them from accumulating and clumping. The two work together to solve the dual blockage risks of liquid impurity settling and pipe wall adhesion. At the same time, the positioning frame 510 ensures the stable operation of the rotating shaft 506, ensuring the continuous and reliable anti-blocking effect.

[0023] The working principle of this utility model is as follows: When this utility model is used, the liquid to be transported first enters the underground tank 2 through the liquid inlet pipe 6. The underground tank 2 serves as a storage container to provide a stable liquid source for subsequent transport. Then, the self-priming pump 3 is started to generate suction. With the help of the efficiency enhancement component 4 to construct a closed passage, the liquid is drawn from the underground tank 2. After the liquid enters the self-priming pump 3 and is pressurized, it is transported to the target terminal through the output pipe 7 to complete one liquid transport cycle. The U-shaped bend in the liquid storage pipe 402 leaves some liquid at its lowest point after the liquid is extracted. When the self-priming pump 3 starts again, there is no need to first vent the large amount of air in the pipe. The liquid left in the liquid storage pipe 402 is directly extracted. The liquid level of the liquid left pushes the gas on the U-shaped bend outlet side of the liquid storage pipe 402 into the pump chamber of the self-priming pump 3 and discharges it. At the same time, the liquid in the underground tank 2 is extracted, which greatly reduces the amount of gas to be processed and thus shortens the self-priming delay time. Meanwhile, the liquid remaining in the storage pipe 402 fills the storage chamber 404, forming an "airtight liquid seal barrier". If air is mixed into the suction pipe 401, the gas is blocked by the liquid seal at the U-shaped bend inlet side of the storage pipe 402 and cannot enter the pump side pipe 403, ensuring that the pump chamber of the self-priming pump 3 is always in contact with the liquid medium, avoiding flow interruption caused by the inability to draw liquid due to the pump chamber being full of gas, and maintaining operational stability. After the self-priming pump 3 stops, in order to prevent solid impurities or deposits in the liquid remaining in the storage pipe 402 from clogging the pipeline, the inclined surface at the top of the collection pipe 501, combined with gravity, guides the solid impurities or deposits into the collection pipe 501. After being filtered through the filter holes on the outer wall of the filter pipe 502, the impurities are intercepted in the filter pipe 502. Then, the electric throttle valve 505 is activated to discharge the impurities in the filter pipe 502. There is no need to stop the machine for disassembly, reducing maintenance time. Finally, after restarting the self-priming pump 3, the liquid in the storage pipe 402 flows, which in turn drives the power blade 511 to rotate, causing the rotating shaft 506 to rotate synchronously. The stirring plate 507 and the scraper 509 rotate synchronously. The stirring plate 507 agitates the liquid, making it difficult for easily settled impurities to adhere to the pipe wall or sink to the bottom. The small sediments that have already formed are also mixed back into the liquid. In conjunction with the scraper 509 sliding close to the inner wall of the storage pipe 402, the sediments attached to the pipe wall are directly scraped off, preventing them from accumulating and clumping, which would cause the pipe to narrow or become blocked.

[0024] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A self-priming pump assembly for underground tanks with a delay-reducing effect, comprising a support frame (1), characterized in that, The support frame (1) is welded to the top of an underground tank (2), and a self-priming pump (3) is installed at one end of the underground tank (2). The outlet end of the underground tank (2) is fixedly connected to an efficiency enhancement component (4) via a flange. The efficiency enhancement component (4) includes a suction pipe (401), a storage pipe (402), and a pump-side pipe (403), and the three are fixedly connected to each other via a flange. An anti-blocking component (5) is fixedly installed at the lowest point of the inner cavity of the storage pipe (402).

2. A self-priming pump assembly for underground tanks with a delay-reducing effect according to claim 1, characterized in that, The liquid storage tube (402) adopts a U-shaped bend, and the inner cavity of the liquid storage tube (402) is provided with a liquid storage cavity (404).

3. A self-priming pump assembly for underground tanks with a delay-reducing effect according to claim 2, characterized in that, The bottom end of the suction pipe (401) is tightly fixed to the outlet end of the underground tank (2) through a flange, and the pump side pipe (403) is fixedly connected to the suction port of the self-priming pump (3) through a flange.

4. A self-priming pump assembly for underground tanks with a delay-reducing effect according to claim 1, characterized in that, The anti-clogging component (5) includes a collection tube (501), which is fixedly installed on the bottom surface of the liquid storage tube (402), and the top end of the collection tube (501) is provided with an inclined surface. A filter tube (502) is fixedly installed in the inner cavity of the collection tube (501).

5. A self-priming pump assembly for underground tanks with a delay-reducing effect according to claim 4, characterized in that, The anti-clogging component (5) also includes a rotating shaft (506), and the rotating shaft (506) is located at the center of the inner cavity of the liquid storage tube (402). Multiple stirring plates (507) are fixedly sleeved on the outer surface of the rotating shaft (506), and each stirring plate (507) is set as an inclined blade.

6. A self-priming pump assembly for underground tanks with a delay-reducing effect according to claim 5, characterized in that, The stirring plate (507) is equipped with a fixing frame (508) on both sides, and the fixing frame (508) is fixedly sleeved on the outer wall of the rotating shaft (506). The upper and lower ends of the fixing frame (508) are fixedly connected with scrapers (509), and the scrapers (509) are in contact with the inner wall of the liquid storage tube (402).

Images