Vertically-mounted rotary shell pipeline type centrifugal pump

Abstract

The utility model provides a vertical installation rotary shell pipeline type centrifugal pump, which belongs to the technical field of centrifugal pumps and comprises a centrifugal pump body, the right side of the centrifugal pump body is fixedly connected with a pump outlet, the left side of the centrifugal pump body is fixedly connected with a pump inlet, and the pump inlet is detachably connected with a connecting pipe through a bolt assembly. A mounting cover is fixedly connected to the upper end of the connecting pipe, a water inlet pipe is fixedly connected to the side wall of the mounting cover, and a mounting sleeve is fixedly connected to the inner top wall of the mounting cover. Through the arrangement of the connecting pipe, the mounting cover, the water inlet pipe, the filter cartridge, the bottom box, the blow-off pipe and the blow-off valve, liquid entering the centrifugal pump is filtered, filtered impurities can be conveniently discharged outwards to avoid blockage of the centrifugal pump, the filter cartridge can be conveniently detached and cleaned to guarantee normal use of the centrifugal pump, and the service life of the centrifugal pump is prolonged. The problems that in the prior art, filtered impurities are inconvenient to discharge, and a filtering piece is inconvenient to clean are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifugal pumps, in particular to a vertically installed spiral casing pipeline type centrifugal pump. Background Art

[0002] A centrifugal pump is a pump that transports liquid by the centrifugal force generated by the rotation of the impeller. The centrifugal pump works by using the centrifugal motion of the water caused by the rotation of the impeller. Before starting the water pump, the pump casing and the suction pipe must be filled with water, and then the motor is started to make the pump shaft drive the impeller and water to rotate at high speed. The water undergoes centrifugal motion and is thrown to the outer edge of the impeller, and flows into the water pressure pipeline of the water pump through the flow channel of the volute pump casing.

[0003] After searching, in the prior art, patent application number CN202123359443.4 discloses a vertically mounted spiral casing pipeline centrifugal pump, comprising a support base, a vertical drive motor fixedly connected to the interior of the support base, a spiral casing pump fixedly connected to the interior of the support base, a pump inlet opened on the left side of the support base, a pump outlet opened on the right side of the support base, a connecting pipe fixedly connected to the interior of the pump inlet, a filter mechanism fixedly connected to the left side of the connecting pipe, and a snap-fit ​​mechanism movably connected to the interior of the filter mechanism. This vertically mounted spiral casing pipeline centrifugal pump, through the cooperation between the splint and the first spring, enables the filter screen to be fixed to the interior of the casing, while the rubber pad can increase the friction between the filter screen and the filter screen, making the filter screen more firmly fixed, the first sealing ring can prevent the liquid inside the casing from flowing out, and the water inlet pipe is connected to the casing by a movable rod, thereby achieving the purpose of convenient installation of the water inlet pipe, but the following defects still exist:

[0004] (1) In the prior art, impurities in water are filtered through a filter. During long-term use, impurities accumulate and are difficult to be discharged, which can easily lead to clogging of the centrifugal pump. In addition, it is inconvenient to clean the filter, resulting in a decrease in the flow rate of the centrifugal pump.

[0005] (2) In the existing technology, the installation height of the centrifugal pump is constant and inconvenient to adjust. Due to different installation environments, the requirements for the installation height of the centrifugal pump are different, resulting in poor applicability of the centrifugal pump.

[0006] Therefore, we have made improvements to this problem and proposed a vertically installed spiral casing pipeline centrifugal pump. Utility Model Content

[0007] The purpose of the utility model is to solve the existing problems of inconvenience in discharging filtered impurities, inconvenience in disassembling and cleaning the filter element and inconvenience in adjusting the installation height.

[0008] In order to achieve the above-mentioned purpose of the utility model, the utility model provides the following technical solutions:

[0009] Vertically installed spiral casing pipeline centrifugal pump can improve the above problems.

[0010] The utility model is specifically as follows:

[0011] The centrifugal pump body comprises a centrifugal pump body, the right side of the centrifugal pump body is fixedly connected with a pump outlet, the left side of the centrifugal pump body is fixedly connected with a pump inlet, the pump inlet is detachably connected to a connecting pipe by a bolt assembly, the upper end of the connecting pipe is fixedly connected with a mounting cover, the side wall of the mounting cover is fixedly connected with a water inlet pipe, the inner top wall of the mounting cover is fixedly connected with a mounting sleeve, the mounting sleeve is internally threaded with a connecting ring, the lower end face of the connecting ring is fixedly connected with a filter cartridge, the bottom internal thread of the mounting cover is connected with a connector, the bottom end of the connector is fixedly connected with a bottom box, the lower end face of the bottom box is fixedly connected with a sewage pipe connected thereto, a sewage valve is installed on the sewage pipe, and a height adjustment structure is provided on the lower side of the centrifugal pump body.

[0012] As an optimal technical solution of the present invention, the height adjustment structure includes a connecting column fixed at the center of the lower end surface of the centrifugal pump body, the bottom end of the connecting column is fixedly connected to a mounting plate, four through holes are evenly opened on the mounting plate, and threaded rods are provided in the four through holes, the bottom end of the threaded rod is fixedly connected to a bottom ring, the threaded rod is symmetrical and has two nuts threadedly connected, and a rubber pad is provided on the side of the nut close to the mounting plate, and the rubber pad is sleeved on the threaded rod.

[0013] As a preferred technical solution of the present invention, four mounting holes are evenly opened on the bottom ring.

[0014] As a preferred technical solution of the present invention, a sealing ring is installed between the pump inlet and the connecting pipe, and a socket that cooperates with the bolt assembly is opened on the sealing ring.

[0015] As a preferred technical solution of the present invention, the filter cartridge is made of stainless steel, and the bottom box is made of transparent material.

[0016] As a preferred technical solution of the present invention, a group of anti-slip grooves are evenly opened on the outer peripheral side wall of the connecting head.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] In the solution of the present utility model:

[0019] 1. Through the provided connecting pipe, mounting cover, water inlet pipe, filter cartridge, bottom box, drain pipe and drain valve, the liquid entering the centrifugal pump is filtered, and the filtered impurities are conveniently discharged to the outside to avoid clogging the centrifugal pump. It is also convenient to disassemble and clean the filter cartridge to ensure the normal use of the centrifugal pump, solving the problems of inconvenience in discharging filtered impurities and cleaning the filter element in the prior art;

[0020] 2. Through the height adjustment structure, the installation height of the spiral casing pipeline centrifugal pump can be flexibly adjusted according to actual installation requirements. It is suitable for different installation conditions and has greater flexibility, solving the problem of the constant installation height of the centrifugal pump in the prior art that is inconvenient to adjust. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the overall structure provided by the utility model;

[0022] Figure 2 A schematic diagram of the rear structure provided by the utility model;

[0023] Figure 3 A schematic diagram of the internal structure of the filter structure provided by the utility model;

[0024] Figure 4 A schematic diagram of the front structure provided by the utility model;

[0025] Figure 5 A schematic diagram of the bottom structure provided by the utility model;

[0026] Figure 6 This is a schematic diagram of the external structure of the filtering structure provided by the utility model.

[0027] Indicated in the figure:

[0028] 1. Centrifugal pump body; 2. Pump outlet; 3. Pump inlet; 4. Connecting pipe; 5. Mounting cover; 6. Water inlet pipe; 7. Mounting sleeve; 8. Connecting ring; 9. Filter cartridge; 10. Connector; 11. Bottom box; 12. Drain pipe; 13. Drain valve; 14. Height adjustment mechanism; 1401. Connecting column; 1402. Mounting plate; 1403. Threaded rod; 1404. Bottom ring; 1405. Nut; 1406. Rubber pad; 1407. Mounting hole; 15. Sealing ring. DETAILED DESCRIPTION

[0029] To make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them.

[0030] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 As shown, this embodiment proposes a vertically installed spiral casing pipeline centrifugal pump, including a centrifugal pump body 1, a pump outlet 2 is fixedly connected to the right side of the centrifugal pump body 1, and a pump inlet 3 is fixedly connected to the left side of the centrifugal pump body 1. The centrifugal pump body 1 sucks liquid from the pump inlet 3 and accelerates the liquid through the internal rotating impeller to obtain a certain pressure and flow rate, and finally discharges it from the pump outlet 2. The pump inlet 3 is detachably connected to a connecting pipe 4 through a bolt assembly, and the upper end of the connecting pipe 4 is fixedly connected to a mounting cover 5. The side wall of the mounting cover 5 is fixedly connected to an inlet pipe 6, which is responsible for introducing the liquid to be pumped into the pump. The inner top wall of the mounting cover 5 is fixedly connected to a mounting sleeve 7. The mounting sleeve 7 is connected with a connecting ring 8 through an internal thread, and a filter cartridge 9 is fixedly connected to the lower end surface of the connecting ring 8, which can filter the liquid entering the interior of the centrifugal pump body 1 to avoid clogging of the pump body. The bottom internal thread of the mounting cover 5 is connected with a connector 10, and the bottom end of the connector 10 is fixedly connected to a bottom box 11. The lower end surface of the bottom box 11 is fixedly connected with a drain pipe 12 connected thereto, and a drain valve 13 is installed on the drain pipe 12. By opening the drain valve 13, the filtered impurities can be discharged outward. By removing the connector 10 and the bottom box 11, the filter cartridge 9 can be taken out, and then the filter cartridge 9 can be cleaned. A height adjustment structure 14 is provided on the lower side of the centrifugal pump body 1.

[0031] like Figure 1 、 Figure 3 and Figure 4 As shown, as a preferred embodiment, on the basis of the above method, further, the height adjustment structure 14 includes a connecting column 1401 fixed at the center of the lower end surface of the centrifugal pump body 1, and the bottom end of the connecting column 1401 is fixedly connected to a mounting plate 1402, and four through holes are evenly opened on the mounting plate 1402, and threaded rods 1403 are provided in the four through holes, and the bottom end of the threaded rod 1403 is fixedly connected to a bottom ring 1404, and the threaded rod 1403 is symmetrically and threadedly connected with two nuts 1405, and the nuts 1405 are provided with rubber pads 1406 on the side close to the mounting plate 1402, and the rubber pads 1406 are sleeved on the threaded rod 1403; the height adjustment is more precise through the cooperation of the threaded rod 1403 and the two nuts 1405, and the rubber pads 1406 increase the friction to prevent the nuts 1405 from loosening, thereby facilitating the adjustment of the installation height of the centrifugal pump and having stronger applicability.

[0032] like Figure 1 and Figure 5As shown, as a preferred embodiment, based on the above method, four mounting holes 1407 are further evenly opened on the bottom ring 1404; the mounting holes 1407 facilitate fixing the bottom ring 1404 to the ground or other supporting structures through components such as fixing bolts.

[0033] like Figure 1 、 Figure 2 and Figure 6 As shown, as a preferred embodiment, on the basis of the above method, a sealing ring 15 is further installed between the pump inlet 3 and the connecting pipe 4, and a socket is provided on the sealing ring 15 to cooperate with the bolt assembly; the setting of the sealing ring 15 ensures the sealing between the pump inlet 3 and the connecting pipe 4 to prevent liquid leakage, and the socket facilitates the installation of the sealing ring 15.

[0034] like Figure 1 and Figure 3 As shown, as a preferred embodiment, on the basis of the above method, the filter cartridge 9 is further made of stainless steel and the bottom box 11 is made of transparent material; the transparent material makes it easy to observe the internal situation of the bottom box 11 and clean up the accumulated impurities in time, and the stainless steel material also ensures the durability and corrosion resistance of the filter cartridge 9.

[0035] like Figure 1 and Figure 3 As shown, as a preferred embodiment, on the basis of the above method, further, a group of anti-slip grooves are evenly opened on the outer peripheral side wall of the connector 10; the setting of the anti-slip grooves increases the friction of the connector 10, thereby facilitating the installation and disassembly of the connector 10.

[0036] Specifically, when using the vertical installation spiral casing pipeline centrifugal pump: fix the bottom ring 1404 to the ground or other supporting structure through the fixing bolt, then adjust the height of the lower nut 1405 according to the installation height, and then respectively set the rubber pad 1406 on the threaded rod 1403, and then install the mounting plate 1402 and its centrifugal pump body 1 on the threaded rod 1403, and then set the rubber pad 1406, and then tighten the upper nut 1405 and the threaded rod 1403. When in use, the centrifugal pump body 1 transfers the liquid from the bottom ring 1404 to the ground or other supporting structure through the fixing bolt, and then adjust the height of the lower nut 1405 according to the installation height, and then respectively set the rubber pad 1406 on the threaded rod 1403, and then install the mounting plate 1402 and its centrifugal pump body 1 on the threaded rod 1403, and then set the rubber pad 1406, and then tighten the upper nut 1405 and the threaded rod 1403. The water inlet pipe 6 sucks into the internal space of the mounting cover 5 and the bottom box 11, and the filter cartridge 9 filters the incoming liquid. The filtered liquid enters the pump inlet 3 through the connecting pipe 4, and then flows out through the pump outlet 2. When the filtered impurities need to be discharged, the drain valve 13 is opened and the impurities flow out through the drain pipe 12. When the filter cartridge 9 needs to be cleaned, the connector 10 is rotated to remove it from the bottom box 11, and then the filter cartridge 9 is rotated to separate it from the mounting sleeve 7, so as to facilitate the cleaning of the filter cartridge 9 and ensure the subsequent filtering effect.

[0037] All technical features in this embodiment can be freely combined according to actual needs.

[0038] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the scope of protection of the present invention.

Claims

1. A vertically mounted spiral casing pipeline centrifugal pump, comprising a centrifugal pump body (1), characterized in that: The right side of the centrifugal pump body (1) is fixedly connected to a pump outlet (2), the left side of the centrifugal pump body (1) is fixedly connected to a pump inlet (3), the pump inlet (3) is detachably connected to a connecting pipe (4) via a bolt assembly, the upper end of the connecting pipe (4) is fixedly connected to a mounting cover (5), the side wall of the mounting cover (5) is fixedly connected to a water inlet pipe (6), the inner top wall of the mounting cover (5) is fixedly connected to a mounting sleeve (7), the mounting sleeve (7) is internally threadedly connected to a connecting ring (8), the lower end surface of the connecting ring (8) is fixedly connected to a filter cartridge (9), the bottom of the mounting cover (5) is internally threadedly connected to a connector (10), the bottom end of the connector (10) is fixedly connected to a bottom box (11), the lower end surface of the bottom box (11) is fixedly connected to a sewage pipe (12) communicating therewith, the sewage pipe (12) is installed with a sewage valve (13), and a height adjustment structure (14) is provided on the lower side of the centrifugal pump body (1).

2. A vertically mounted spiral casing pipeline centrifugal pump according to claim 1, characterized in that: The height adjustment structure (14) includes a connecting column (1401) fixed at the center of the lower end surface of the centrifugal pump body (1), the bottom end of the connecting column (1401) is fixedly connected to a mounting plate (1402), four through holes are evenly opened on the mounting plate (1402), and threaded rods (1403) are provided in the four through holes, the bottom end of the threaded rod (1403) is fixedly connected to a bottom ring (1404), the threaded rod (1403) is symmetrically and threadedly connected with two nuts (1405), and the nut (1405) is provided with a rubber pad (1406) on the side close to the mounting plate (1402), and the rubber pad (1406) is sleeved on the threaded rod (1403).

3. A vertically mounted spiral casing pipeline centrifugal pump according to claim 2, characterized in that: Four mounting holes (1407) are evenly arranged on the bottom ring (1404).

4. A vertically mounted spiral casing pipeline centrifugal pump according to claim 1, characterized in that: A sealing ring (15) is installed between the pump inlet (3) and the connecting pipe (4), and a socket that matches the bolt assembly is opened on the sealing ring (15).

5. The vertically mounted spiral casing pipeline centrifugal pump according to claim 1, characterized in that: The filter cartridge (9) is made of stainless steel, and the bottom box (11) is made of transparent material.

6. A vertically mounted spiral casing pipeline centrifugal pump according to claim 1, characterized in that: A group of anti-slip grooves are evenly arranged on the outer peripheral side wall of the connector (10).

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