Double-channel anti-blocking circulating pump

Abstract

The utility model relates to the technical field of circulating pumps, in particular to a double-channel anti-blocking circulating pump which comprises a circulating pump body, a water inlet pipe and a water outlet pipe are connected to the water inlet end and the water outlet end of the bottom end of the circulating pump body respectively, two branch pipes are connected to an opening of the water inlet pipe through a Y-shaped connecting pipe at the same time, and water stop valves are connected to the connecting positions of the branch pipes and the Y-shaped connecting pipe through flanges. The water stop valve comprises a shell, a water stop block is connected into the shell in a sliding mode, and a filter screen is arranged between the water stop valve and the branch pipe. According to the double-channel anti-blocking circulating pump, circulating liquid can be filtered through the arranged filter screen, and meanwhile, the blocked filter screen can be cleaned through the arranged Y-shaped connecting pipe and the arranged water stop valve under the condition that the double-channel anti-blocking circulating pump is not stopped.

Description

Technical Field

[0001] The utility model relates to the technical field of circulating pumps, in particular to a double-channel anti-blocking circulating pump. Background Art

[0002] A circulating pump is a pump used to transport circulating liquid in a device for reaction, absorption, separation, and absorption liquid regeneration. Generally, a single-stage centrifugal pump is used. The flow rate of a circulating pump is medium-sized, and under stable working conditions, the flow rate of the pump changes relatively little. Its head is low, and it is used to overcome the pressure drop of the circulation system. The working principle of a circulating pump The pump used to circulate water is called a circulating pump. For example, the hot water in the water heating pipe is circulated by a circulating pump.

[0003] The utility model patent with authorization announcement number CN207315669U discloses a circulating pump, including a pump casing, a lower cavity, a water inlet and a water outlet are arranged at the lower end of the pump casing, a motor room is arranged at the upper end of the pump casing, a motor is arranged in the motor room, a plurality of heat dissipation holes are arranged on the side wall of the motor room, and a sand shield is also arranged outside the heat dissipation holes.

[0004] Although the technical solution designs a sand shield at the heat dissipation hole and a ventilation hole on the sand shield, which can ventilate the motor room, and the ventilation hole will never face the air outlet due to the design of the guide plate, it is difficult for rain and sand to enter the sand shield, so that sand and rain will not enter the motor room, protecting the internal motor; at the same time, a guide groove with the same function as the guide plate is designed, and the guide groove is much stronger than the guide plate in terms of impact resistance. When the guide plate is damaged, the sand shield can work normally; but the technical solution does not filter the circulating liquid, which is easy to cause blockage and damage the circulating pump. In view of this, we propose a dual-channel anti-blocking circulating pump. Utility Model Content

[0005] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a dual-channel anti-blocking circulation pump.

[0006] In the first aspect, the present application provides a dual-channel anti-blocking circulation pump, including a circulation pump body, the bottom end of the circulation pump body is respectively connected to a water inlet pipe and a water outlet pipe at the water inlet and outlet ends, the water inlet pipe is simultaneously connected to two branch pipes at the opening through a Y-shaped connecting pipe, a water stop valve is flange-connected between the branch pipe and the connection between the Y-shaped connecting pipe, the water stop valve includes a shell, a water blocking block is slidably connected in the shell, and a filter is provided between the water stop valve and the branch pipe.

[0007] According to the technical solution provided in the embodiment of the present application, flange rings are welded and fixed at the opening of the water inlet pipe, the opening of the Y-shaped connecting pipe, the front and rear openings of the water stop valve, and the opening of the branch pipe. The two corresponding flange rings fit tightly and are clamped between them by a number of locking bolts.

[0008] According to the technical solution provided in the embodiment of the present application, a sliding cavity for accommodating the water blocking block to slide up and down is opened inside the shell, and the shell is rotatably connected on the vertical center axis in the sliding cavity to drive the water blocking block to slide up and down. The lower ends of the sliding cavity and the water blocking block are both semicircular, and the vertical centerline height of the water blocking block is greater than the diameter of the semicircle at its lower end.

[0009] According to the technical solution provided in the embodiment of the present application, the adjusting rod includes a threaded rod threadedly connected to the water blocking block, a straight rod is integrally formed at the top of the threaded rod, a limiting ring is integrally formed at the middle part of the outer side of the straight rod, and a knob is welded and fixed to the top of the straight rod.

[0010] According to the technical solution provided in the embodiment of the present application, a protrusion is welded and fixed at the center of the top end of the shell, a limiting cavity adapted to the limiting ring is opened in the protrusion, and the knob is located outside the top end of the protrusion.

[0011] According to the technical solution provided in the embodiment of the present application, when the water blocking block slides to the top of the sliding cavity, the pipe openings at both ends of the water stop valve are completely exposed; when the water blocking block slides to the bottom of the sliding cavity, the water blocking block completely blocks the pipe openings, and the length of the threaded rod is equal to the vertical centerline height of the sliding cavity.

[0012] According to the technical solution provided in the embodiment of the present application, a groove adapted to the filter screen is provided on the inner side of the water inlet end of the water stop valve near the flange ring on the same side, and a plurality of fine holes are provided at the bottom end of the filter screen.

[0013] To summarize, the present technical solution specifically discloses a dual-channel anti-blocking circulation pump, which includes a circulation pump body, wherein the bottom end of the circulation pump body is respectively connected with an inlet pipe and an outlet pipe at the water inlet and outlet ends, and the inlet pipe is simultaneously connected with two branch pipes at the opening through a Y-shaped connecting pipe, and a water stop valve is flange-connected between the branch pipe and the Y-shaped connecting pipe at the connection, and a filter is provided between the water stop valve and the branch pipe; the circulating liquid can be filtered by the provided filter, and the blocked filter can be cleaned without stopping the machine by the provided Y-shaped connecting pipe and the water stop valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is an exploded view of the structure in the utility model;

[0017] Figure 3 It is a cross-sectional view of the water stop valve structure in the utility model;

[0018] Figure 4 It is an exploded view of the water stop valve structure in the utility model;

[0019] Figure 5 It is a cross-sectional view of the shell structure in the utility model.

[0020] In the figure:

[0021] 1. Circulation pump body;

[0022] 2. Water inlet pipe;

[0023] 3. Water outlet pipe;

[0024] 4. Y-type connecting pipe;

[0025] 5. Branch pipe;

[0026] 6. Water stop valve; 61. Shell; 611. Sliding cavity; 612. Bump; 613. Limit cavity; 62. Water blocking block; 63. Adjusting rod; 631. Threaded rod; 632. Straight rod; 633. Limiting ring; 634. Knob;

[0027] 7. Filter;

[0028] 8. Flange ring;

[0029] 9. Tighten the bolts. DETAILED DESCRIPTION

[0030] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It is also necessary to explain that, for ease of description, only the parts related to the utility model are shown in the accompanying drawings.

[0031] 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.

[0032] See also Figure 1-Figure 5 A dual-channel anti-blocking circulation pump comprises a circulation pump body 1. The bottom end of the circulation pump body 1 is respectively connected with an inlet pipe 2 and an outlet pipe 3 at the water inlet and outlet ends. The inlet pipe 2 is simultaneously connected with two branch pipes 5 at the opening through a Y-shaped connecting pipe 4. A water stop valve 6 is flange-connected between the branch pipe 5 and the Y-shaped connecting pipe 4. The water stop valve 6 comprises a shell 61. A water blocking block 62 is slidably connected in the shell 61. A filter screen 7 is provided between the water stop valve 6 and the branch pipe 5.

[0033] In this embodiment, flange rings 8 are welded and fixed at the opening of the water inlet pipe 2, the opening of the Y-type connecting pipe 4, the front and rear openings of the water stop valve 6, and the opening of the branch pipe 5. The two corresponding flange rings 8 fit tightly and are clamped between them by a number of locking bolts 9, which fit tightly and prevent the circulating liquid from overflowing.

[0034] Furthermore, a sliding cavity 611 is provided inside the shell 61 for accommodating the water blocking block 62 to slide up and down. The shell 61 is rotatably connected on the vertical center axis in the sliding cavity 611 to an adjusting rod 63 for driving the water blocking block 62 to slide up and down. The lower ends of the sliding cavity 611 and the water blocking block 62 are both semicircular, and the vertical centerline height of the water blocking block 62 is greater than the diameter of the semicircle at its lower end; the adjusting rod 63 rotates to drive the water blocking block 62 to slide up and down along the sliding cavity 611, and the size design of the water blocking block 62 ensures that it can effectively block the circulating liquid.

[0035] Secondly, the adjusting rod 63 includes a threaded rod 631 threadedly connected to the water blocking block 62, a straight rod 632 is integrally formed at the top of the threaded rod 631, a limiting ring 633 is integrally formed in the middle of the outer side of the straight rod 632, and a knob 634 is welded and fixed at the top of the straight rod 632; the design of the limiting ring 633 ensures that the adjusting rod 63 will not move up and down when it is rotated, and the knob 634 helps to rotate the adjusting rod 63.

[0036] Furthermore, a protrusion 612 is welded and fixed at the center of the top of the shell 61, and a limiting cavity 613 adapted to the limiting ring 633 is opened in the protrusion 612, and the knob 634 is located outside the top of the protrusion 612; the adapted limiting cavity 613 allows the limiting ring 633 to rotate therein.

[0037] Secondly, when the water blocking block 62 slides to the top of the sliding cavity 611, the pipe openings at both ends of the water stop valve 6 are completely exposed; when the water blocking block 62 slides to the bottom of the sliding cavity 611, the water blocking block 62 completely blocks the pipe opening, and the length of the threaded rod 631 is equal to the vertical centerline height of the sliding cavity 611; the length of the threaded rod 631 is designed so that the water blocking block 62 can slide to the top and bottom of the sliding cavity 611 under the action of the thread.

[0038] Furthermore, a groove matching the filter screen 7 is provided on the inner side of the water inlet end of the water stop valve 6 near the flange ring 8 on the same side, and a plurality of fine holes are provided at the bottom of the filter screen 7; the design of the groove facilitates the installation of the filter screen 7, and the fine holes can effectively filter out large particles of impurities.

[0039] Working principle: When the dual-channel anti-blocking circulation pump of the utility model is in use, the user connects the two branch pipes 5 to the circulating liquid. When one of the branch pipes 5 is blocked, first rotate the adjusting rod 63 to make the water blocking block 62 slide downward along the sliding cavity 611. When the water blocking block 62 completely blocks the pipeline entrance, loosen the locking bolt 9, separate the branch pipe 5 and the water stop valve 6, take out the filter screen 7 for cleaning, and then put the filter screen 7 back. The locking bolt 9 makes the branch pipe 5 and the water stop valve 6 fit tightly. Finally, rotate the adjusting rod 63 to make the water blocking block 62 slide upward along the sliding cavity 611 to expose the pipeline entrance.

[0040] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the utility model involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the concept of the utility model. For example, the above features are replaced with the technical features disclosed in the present application but not limited to those with similar functions.

Claims

1. A dual-channel anti-blocking circulation pump, comprising a circulation pump body (1), characterized in that: The bottom end of the circulation pump body (1) is connected to a water inlet pipe (2) and a water outlet pipe (3) at the water inlet and outlet ends respectively; the water inlet pipe (2) is simultaneously connected to two branch pipes (5) at the opening through a Y-shaped connecting pipe (4); a water stop valve (6) is flange-connected between the branch pipes (5) and the Y-shaped connecting pipe (4); the water stop valve (6) comprises a housing (61); a water blocking block (62) is slidably connected inside the housing (61); and a filter screen (7) is provided between the water stop valve (6) and the branch pipes (5).

2. The dual-channel anti-blocking circulation pump according to claim 1 is characterized in that: Flange rings (8) are welded and fixed at the opening of the water inlet pipe (2), the opening of the Y-shaped connecting pipe (4), the front and rear openings of the water stop valve (6) and the opening of the branch pipe (5), and the two corresponding flange rings (8) are tightly fitted and clamped by a plurality of locking bolts (9).

3. The dual-channel anti-blocking circulation pump according to claim 1 is characterized in that: A sliding cavity (611) for accommodating the water blocking block (62) to slide up and down is provided inside the housing (61); an adjusting rod (63) for driving the water blocking block (62) to slide up and down is rotatably connected to the housing (61) on a vertical center axis in the sliding cavity (611); the sliding cavity (611) and the lower ends of the water blocking block (62) are both semicircular; the height of the vertical center line of the water blocking block (62) is greater than the diameter of the semicircular shape at the lower end thereof.

4. The dual-channel anti-blocking circulation pump according to claim 3 is characterized in that: The adjusting rod (63) comprises a threaded rod (631) threadably connected to the water blocking block (62); a straight rod (632) is integrally formed at the top end of the threaded rod (631); a limiting ring (633) is integrally formed at the middle portion of the outer side of the straight rod (632); and a knob (634) is welded and fixed to the top end of the straight rod (632).

5. The dual-channel anti-blocking circulation pump according to claim 4 is characterized in that: A protrusion (612) is welded and fixed at the center of the top end of the shell (61), a limiting cavity (613) adapted to the limiting ring (633) is provided in the protrusion (612), and the knob (634) is located outside the top end of the protrusion (612).

6. The dual-channel anti-blocking circulation pump according to claim 5 is characterized in that: When the water blocking block (62) slides to the top of the sliding cavity (611), the pipe openings at both ends of the water stop valve (6) are completely exposed; when the water blocking block (62) slides to the bottom of the sliding cavity (611), the water blocking block (62) completely blocks the pipe opening, and the length of the threaded rod (631) is equal to the vertical centerline height of the sliding cavity (611).

7. The dual-channel anti-blocking circulation pump according to claim 2 is characterized in that: A groove matching the filter screen (7) is provided on the inner side of the water inlet end of the water stop valve (6) near the flange ring (8) on the same side, and a plurality of fine holes are provided on the bottom end of the filter screen (7).

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