Anti-blocking circulating water pump

Abstract

The utility model discloses an anti-blocking circulating water pump which comprises a water pump body, the water pump body is provided with a water inlet and a water outlet, the water inlet is provided with a water inlet main pipe, and the water outlet of the water inlet main pipe is connected with the water inlet through a main water pipe and a standby water pipe respectively. The main water pipe is internally provided with a first filter screen, the standby water pipe is internally provided with a second filter screen, and the double-water-pipe and double-filter-screen structure has the advantages that the problems that in the prior art, a circulating water pump is prone to being blocked, and the filter screens need to be manually cleaned after shutdown exist; through the arrangement of the electric valve, the waste discharge pipe, the control valve, the pressure sensor and the PLC, the functions of automatically switching water pipes, automatically monitoring blockage and starting a backwashing mechanism under the non-stop condition are realized, the blockage of the water pump is effectively prevented, and the continuous operation capability and the automation level of the circulating water pump are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to circulating water pump technical field, concretely is a kind of anti-clogging circulating water pump. BACKGROUND

[0002] In circulating water system, circulating water pump plays a vital role, it promotes water to continuously circulate in system by increasing the pressure or flow rate of water.

[0003] Through retrieval, the application number of a kind of anti-clogging circulating water pump of 202123212197.X Chinese utility model patent, including circulating water pump body, circulating water pump body is connected with water inlet pipe and water outlet pipe, water inlet pipe is connected with filter pipe, water inlet pipe is inserted into filter pipe water inlet end and is screwed with collecting pipe, one-way valve is equipped in the side of collecting pipe close to water inlet pipe, one-way valve is equipped with rotating rod on the side away from water inlet pipe, rotating rod is fixed with blade, rotating rod is equipped with filter screen on the side away from one-way valve, when needing to clean filter screen, the sealing cover on filter cartridge needs to be opened, this needs circulating pump to stop and wait, and most operations still rely on manual.

[0004] In view of the problems of easy clogging, inconvenient cleaning and maintenance of circulating water pump in the prior art, the utility model introduces double water pipe and double filter screen structure, electric valve control, waste pipe design and the integrated application of pressure sensor and PLC controller, to realize the function of automatic switching of water pipe without stopping, automatic monitoring of clogging and starting of backwashing mechanism, thereby effectively prolonging the operation cycle of water pump and improving the overall stability and automation level of system. UTILITY MODEL CONTENTS

[0005] The utility model is directed at the deficiencies of the prior art and provides an anti-clogging circulating water pump to solve the problems in the background art.

[0006] The utility model provides the following technical scheme: an anti-clogging circulating water pump, comprising a water pump body, wherein the water pump body is provided with a water inlet and a water outlet, the water inlet is provided with a water inlet main pipe, the water outlet of the water inlet main pipe is connected with the water inlet through a main water pipe and a standby water pipe, respectively, a first filter screen is installed in the main water pipe, a second filter screen is installed in the standby water pipe, a first valve is arranged between the water inlet main pipe and the first filter screen of the main water pipe, a second valve is arranged between the water inlet main pipe and the second filter screen of the standby water pipe, a third valve is arranged between the first filter screen and the water pump body of the main water pipe, a fourth valve is arranged between the second filter screen and the water pump body of the standby water pipe, a first waste pipe is arranged between the first valve and the first filter screen of the main water pipe, and a second waste pipe is arranged between the second valve and the second filter screen of the standby water pipe.

[0007] Compared with the prior art, the utility model has the advantages of: in the prior art, the circulating water pump is prone to blockage and needs to be manually cleaned, the utility model is provided with double water pipes and double filter screens, and is provided with an electric valve, a waste pipe, a control valve, a pressure sensor and a PLC controller, so that the water pipes can be automatically switched, blockage can be automatically monitored and a backwashing mechanism can be started without stopping the pump, the pump is effectively prevented from being blocked, and the continuous operation capacity and automation level of the circulating water pump are improved. BRIEF DESCRIPTION OF DRAWINGS

[0008] Figure 1 It is a structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0009] The technical solutions in the embodiments of the utility model will be clearly and completely described in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0010] Please refer to Figure 1 The utility model provides a kind of anti-blocking circulating water pump, including water pump main body 1, water pump main body 1 is equipped with water inlet and water outlet, water inlet is equipped with water inlet main pipe 2, the water outlet of water inlet main pipe 2 is respectively connected with water inlet by a main water pipe 3 and a spare water pipe 4, the inside of main water pipe 3 is equipped with first filter screen 5, the inside of spare water pipe 4 is equipped with second filter screen 6, main water pipe 3 is equipped with first valve 7 between water inlet main pipe 2 and first filter screen 5, spare water pipe 4 is equipped with second valve 8 between water inlet main pipe 2 and second filter screen 6, main water pipe 3 is equipped with third valve 9 between first filter screen 5 and water pump main body 1, spare water pipe 4 is equipped with fourth valve 10 between second filter screen 6 and water pump main body 1, when using, water in circulating system enters main water pipe 3 by water inlet main pipe 2, after passing through main water pipe 3, it is filtered by first filter screen 5 and then enters water pump main body 1, then it is returned to circulating system by water outlet, when first filter screen 5 is blocked, first valve 7 and third valve 9 can be closed, second valve 8 and fourth valve 10 are opened, so that water entering by water inlet main pipe 2 is diverted to spare water pipe 4, and then it is filtered by second filter screen 6 and enters water pump main body 1, and then it is returned to circulating system by water outlet, by the arrangement of spare water pipe 4, the flow of water in circulating system is prevented from being affected by the blockage of water pump.

[0011] It is worth mentioning that the main water pipe 3 is provided with a first waste pipe 11 between the first valve 7 and the first filter screen 5, and the standby water pipe 4 is provided with a second waste pipe 12 between the second valve 8 and the second filter screen 6. When the first filter screen 5 needs to be cleaned, the first valve 7 and the third valve 9 can be closed, and the second valve 8 and the fourth valve 10 can be opened to ensure the normal flow of water in the circulating system. Then the third valve 9 is opened. It can be understood that due to the normal operation of the water pump body 1, when the third valve 9 is opened, part of the water in the water pump body 1 will flow reversely into the main water pipe 3 under the action of water pressure. When the water flows reversely in the main water pipe 3, the clogging on the surface of the first filter screen 5 will be automatically washed reversely. The clogging washed down will be discharged outward through the first waste pipe 11. It can be understood that the water pump body 1 has a high water pressure, and when the first filter screen 5 is cleaned, the third valve 9 does not need to be completely opened, but only needs to be opened a little to wash the first filter screen 5 clean. When the second filter screen 6 needs to be cleaned, the principle is the same as that of cleaning the first filter screen 5, which will not be repeated here.

[0012] In some embodiments, a pressure sensor 13 is installed at the water outlet, which is used to monitor the water outlet pressure. When the water outlet pressure decreases significantly, it indicates that the first filter screen 5 or the second filter screen 6 being worked is clogged.

[0013] In order to facilitate the opening and closing control of the first valve 7, the second valve 8, the third valve 9 and the fourth valve 10, the first valve 7, the second valve 8, the third valve 9 and the fourth valve 10 are all electric valve structures.

[0014] The first waste pipe 11 and the second waste pipe 12 are both provided with a control valve 14, which can be an electric valve or a manual butterfly valve.

[0015] The water pump body 1 is provided with a PLC controller 15, which can be connected with the pressure sensor 13. The PLC controller 15 is signal connected with the first valve 7, the second valve 8, the third valve 9 and the fourth valve 10. When the control valve 14 is an electric valve, the PLC controller 15 is also signal connected with the control valve 14.

[0016] In summary, the utility model wants to realize is a kind of circulating water pump with automatic anti-blocking function.The water pump is designed by double water pipe and double filter screen, combined with electric valve, waste pipe and control valve structure, realize the function of automatic switching water pipe and cleaning filter screen without stopping.The real-time monitoring and intelligent control of water pump outlet pressure are realized by installing pressure sensor and PLC controller, when detecting filter screen blockage, water pipe can be automatically switched and backwash mechanism is started, so as to effectively prevent water pump blockage problem, improve the continuous operation ability and automation level of circulating water pump.

[0017] Although the embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A clog-resistant circulating water pump, characterized in that: The system includes a water pump body, which has an inlet and an outlet. The inlet has a main inlet pipe, and the outlet of the main inlet pipe is connected to the inlet via a main water pipe and a backup water pipe. A first filter screen is installed inside the main water pipe, and a second filter screen is installed inside the backup water pipe. A first valve is installed between the main water pipe and the first filter screen, and a second valve is installed between the backup water pipe and the second filter screen. A third valve is installed between the main water pipe and the first filter screen, and a fourth valve is installed between the backup water pipe and the second filter screen. A first waste pipe is installed between the main water pipe and the first valve and the first filter screen, and a second waste pipe is installed between the backup water pipe and the second valve and the second filter screen.

2. The anti-clogging circulating water pump according to claim 1, characterized in that: A pressure sensor is installed at the water outlet.

3. The anti-clogging circulating water pump according to claim 1, characterized in that: The first valve, the second valve, the third valve, and the fourth valve are all electric valves.

4. The anti-clogging circulating water pump according to claim 1, characterized in that: Both the first and second waste discharge pipes are equipped with control valves.

5. A clog-resistant circulating water pump according to any one of claims 1-4, characterized in that: The water pump body is equipped with a PLC controller.

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