Vortex pump guide pipe structure

Abstract

The utility model relates to the technical field of peripheral pump conduits, in particular to a peripheral pump conduit structure which comprises a front cover and a rear cover, the front cover is fixedly connected with the rear cover, an internal channel for water flow to pass through is formed between the front cover and the rear cover, a water inlet and a backflow nozzle are arranged on the front cover, a conduit is fixedly connected to the rear cover of the peripheral pump, and the conduit is provided with a water outlet. According to the vortex pump, the backflow nozzle is arranged, when water flow passes through the water inlet end portion with the inner diameter gradually reduced, water and air can be separated, air in the water flow is pressed and flows back to the outside together with part of the water flow through the backflow nozzle, and therefore the water flow can be recycled. When the pressurized water flow passes through the water replenishing middle part, the water flow in the internal channel can be replenished to the water replenishing middle part through the overflowing hole, so that the water replenishing middle part is filled with the water flow, the water flow is prevented from impacting the inner wall of the guide pipe, the water flow is more stable and smoother when passing through the peripheral pump, and the effect of reducing the noise of the water flow is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of vortex pump conduits, in particular to a vortex pump conduit structure. Background Art

[0002] A vortex pump is a pump whose impeller is an integral wheel disc with many small blades on the outer edge, and the liquid repeatedly swirls in the blades and the flow channel of the pump body.

[0003] In the prior art, a conduit is provided at the front end of the vortex pump, and the conduit is connected to an external water source delivery component to facilitate the delivery of water to the vortex pump.

[0004] However, in the prior art, the vortex pump conduit can only transport water. When air exists in the transported water, the air and water enter the vortex pump together, which will make it impossible for the water to pass through the vortex pump stably and smoothly, and will also cause the noise of the vortex pump to increase. Utility Model Content

[0005] The purpose of the utility model is to provide a vortex pump conduit structure to solve the problems raised in the above background technology.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] A vortex pump conduit structure comprises a front cover and a rear cover, which are fixedly connected to form an internal channel for water to flow through, a water inlet and a reflux nozzle are arranged on the front cover, a conduit is fixedly connected to the rear cover of the vortex pump, and an inclined flow hole is opened on the rear cover of the vortex pump.

[0008] The conduit includes a water inlet end, a water replenishment middle part, and a water outlet end. The water inlet end and the water outlet end are respectively fixed at two ends of the water replenishment middle part. The water inlet end is connected to the internal channel, and the two ends of the flow hole are respectively connected to the internal channel and the water replenishment middle part.

[0009] Preferably, the inner diameter of the water inlet end gradually decreases along the direction of water flow, the inner diameter of the water outlet end gradually increases along the direction of water flow, and the reflux nozzle and the water inlet end are arranged in the same horizontal direction.

[0010] Preferably, a sealing protrusion is fixedly connected to one side of the front cover, and a sealing recess is provided on one side of the rear cover of the vortex pump, and the sealing protrusion and the sealing recess are matched.

[0011] Preferably, a filtering mechanism is provided in the water inlet, and the filtering mechanism includes a fixed shaft and a filter screen. The fixed shaft is fixed to the inner wall of the internal channel, one end of the fixed shaft is provided with a thread, a limited support ring is fixedly connected to the fixed shaft, and the threaded end of the fixed shaft passes through the filter screen and extends to the outside of the filter screen.

[0012] Preferably, an anti-slip pad is sleeved on one side of the fixed shaft and located on the filter screen, a threaded end of the fixed shaft is threadedly connected to a locking sleeve, and protrusions are fixedly connected to both sides of the locking sleeve.

[0013] Preferably, the limiting support ring is fixedly connected to auxiliary support rods in a ring array, a groove is provided on the limiting support ring, and a limiting protrusion is fixedly connected to one side of the filter screen and located in the groove of the limiting support ring.

[0014] Beneficial effects of the utility model:

[0015] The utility model provides a reflux nozzle, which can separate water from air when the water flows through the water inlet end portion with a gradually decreasing inner diameter, so that the air in the water flow is pressurized and flows back to the outside through the reflux nozzle together with part of the water flow. When the pressurized water flows through the water replenishing middle portion, the water flow in the internal channel can replenish the water replenishing middle portion through the flow hole, so that the water flow fills the water replenishing middle portion, avoiding the water flow from impacting the inner wall of the conduit, making the water flow more stable and smooth when passing through the vortex pump, thereby achieving the effect of reducing the water flow noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the prior art description are briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This utility model Figure 1 A cross-sectional view of the front cover of the medium vortex pump;

[0019] Figure 3 This utility model Figure 1 Schematic diagram of the connection between the front cover of the medium vortex pump and the rear cover of the vortex pump;

[0020] Figure 4 This utility model Figure 2 Schematic diagram of the structure of the middle filter;

[0021] Figure 5 This utility model Figure 4 Side view of the middle filter.

[0022] The reference numerals in the figures are as follows:

[0023] 1. Front cover, 101. Water inlet, 102. Backflow nozzle, 2. Back cover, 3. Internal channel, 4. Conduit, 401. Water inlet end, 402. Water replenishment middle part, 403. Water outlet end, 5. Flow hole, 6. Sealing protrusion, 7. Sealing concave, 8. Fixed shaft, 9. Filter, 10. Limiting support ring, 11. Anti-slip pad, 12. Locking sleeve, 13. Raised part, 14. Auxiliary support rod, 15. Limiting protrusion. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] A vortex pump duct structure includes a front cover 1 and a rear cover 2, the front cover 1 and the rear cover 2 are fixedly connected, an internal channel 3 for water to flow through is formed between the front cover 1 and the rear cover 2, a water inlet 101 and a reflux nozzle 102 are provided on the front cover 1, a duct 4 is fixedly connected to the rear cover 2 of the vortex pump, and an inclined flow hole 5 is opened on the rear cover 2 of the vortex pump.

[0026] The conduit 4 includes a water inlet end 401, a water replenishment middle part 402, and a water outlet end 403. The water inlet end 401 and the water outlet end 403 are respectively fixed at two ends of the water replenishment middle part 402, the water inlet end 401 is connected to the internal channel 3, and the two ends of the flow hole 5 are respectively connected to the internal channel 3 and the water replenishment middle part 402.

[0027] like Figure 1 and Figure 2 The water inlet end 401, the water replenishment middle part 402, and the water outlet end 403 are connected in sequence, and the water inlet end 401, the water replenishment middle part 402, and the water outlet end 403 are all fixed on the rear cover 2, and the water inlet 101 and the reflux nozzle 102 are located on the same side of the front cover 1 and are connected to the internal channel 3.

[0028] The inner diameter of the water inlet end 401 gradually decreases along the water flow direction, and the inner diameter of the water outlet end 403 gradually increases along the water flow direction. The return nozzle 102 and the water inlet end 401 are arranged in the same horizontal direction.

[0029] A sealing protrusion 6 is fixedly connected to one side of the front cover 1 , and a sealing recess 7 is provided on one side of the vortex pump rear cover 2 , and the sealing protrusion 6 and the sealing recess 7 are matched.

[0030] like Figure 1 and Figure 2When the front cover 1 and the rear cover 2 are fixed together, the sealing protrusion 6 is inserted into the sealing recess 7 to improve the sealing between the front cover 1 and the rear cover 2. The front cover 1 and the rear cover 2 together constitute the duct structure of the vortex pump, which has a guiding effect on the water flow.

[0031] A filtering mechanism is arranged in the water inlet 101, and the filtering mechanism includes a fixed shaft 8 and a filter screen 9. The fixed shaft 8 is fixed to the inner wall of the internal channel 3, one end of the fixed shaft 8 is provided with a thread, a limited support ring 10 is fixedly connected to the fixed shaft 8, and the threaded end of the fixed shaft 8 passes through the filter screen 9 and extends to the outside of the filter screen 9.

[0032] An anti-skid pad 11 is sleeved on one side of the fixed shaft 8 and located at the filter screen 9 . A locking sleeve 12 is threadedly connected to one end of the fixed shaft 8 with threads, and protrusions 13 are fixedly connected to both sides of the locking sleeve 12 .

[0033] like Figure 2 , Figure 4 and Figure 5 , first put the filter screen 9 onto the threaded end of the fixed shaft 8, then put the anti-skid pad 11 onto the fixed shaft 8, and finally manually rotate the locking sleeve 12 (the locking sleeve 12 has threads on the inside and can be threadedly connected to the threaded end of the fixed shaft 8). The filter screen 9 can be locked to one side of the limiting support ring 10, and the anti-skid pad 11 is used for anti-skid protection, so that the locking sleeve 12 can better lock the filter screen 9. One end of the locking sleeve 12 is a curved surface, which can reduce the impact force generated when water flows through, and the raised portion 13 can facilitate manual rotation of the locking sleeve 12.

[0034] The limiting support ring 10 is fixedly connected to auxiliary support rods 14 in a ring array. A groove is provided on the limiting support ring 10. A limiting protrusion 15 is fixedly connected to one side of the filter screen 9 and located in the groove of the limiting support ring 10.

[0035] like Figure 2 , Figure 4 and Figure 5 By setting the auxiliary support rod 14 to one side of the filter 9, the impact resistance of the filter 9 can be improved. At the same time, the limiting protrusion 15 is inserted into the groove of the limiting support ring 10, which can prevent the filter 9 from rotating itself and quickly position the filter 9.

[0036] The working principle of a vortex pump conduit structure provided by the utility model is as follows:

[0037] The external water flow enters the internal channel 3 through the water inlet 101, and then flows to the water inlet end 401 through the internal channel. Since the inner diameter of the water inlet end 401 gradually decreases along the water flow direction, the water flow cannot completely pass through the water inlet end 401, which increases the water pressure inside the water inlet end 401. At this time, the water pressure will compress the air in the water flow, so that the air in the water flow and part of the water flow will reflux through the reflux nozzle 102 under the action of the water pressure at the water inlet end 401, thereby realizing water-gas separation.

[0038] The water flow in the internal channel 3 then enters the water replenishment middle part 402 through the water inlet end 401, so that the water flow can fill the water replenishment middle part, making the water flow more stable and smooth.

[0039] Compared with the related art, the vortex pump conduit structure provided by the utility model has the following beneficial effects:

[0040] The utility model provides a reflux nozzle 102, which can separate water from air when the water flows through the water inlet end 401 with a gradually decreasing inner diameter, so that the air in the water flow is pressurized and flows back to the outside through the reflux nozzle 102 together with part of the water flow. When the pressurized water flows through the water replenishment middle part 402, the water flow in the internal channel 3 can replenish the water replenishment middle part 402 through the flow hole 5, so that the water flow fills the water replenishment middle part 402, avoiding the water flow from impacting the inner wall of the conduit 4, making the water flow more stable and smooth when passing through the vortex pump, thereby achieving the effect of reducing the water flow noise.

[0041] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A vortex pump duct structure, comprising a front cover (1) and a rear cover (2), wherein the front cover (1) and the rear cover (2) are fixedly connected, characterized in that: An internal channel (3) for water to flow through is formed between the front cover (1) and the rear cover (2); a water inlet (101) and a return nozzle (102) are provided on the front cover (1); a conduit (4) is fixedly connected to the rear cover (2) of the vortex pump; and an inclined flow hole (5) is provided on the rear cover (2) of the vortex pump; The conduit (4) comprises a water inlet end (401), a water replenishment middle portion (402), and a water outlet end (403); the water inlet end (401) and the water outlet end (403) are respectively fixed at two ends of the water replenishment middle portion (402); the water inlet end (401) is connected to the internal channel (3); and the two ends of the flow hole (5) are respectively connected to the internal channel (3) and the water replenishment middle portion (402).

2. A vortex pump conduit structure according to claim 1, characterized in that: The inner diameter of the water inlet end (401) gradually decreases along the direction of water flow, and the inner diameter of the water outlet end (403) gradually increases along the direction of water flow. The return nozzle (102) and the water inlet end (401) are arranged in the same horizontal direction.

3. A vortex pump conduit structure according to claim 1, characterized in that: A sealing protrusion (6) is fixedly connected to one side of the front cover (1), and a sealing recess (7) is provided on one side of the vortex pump rear cover (2), and the sealing protrusion (6) and the sealing recess (7) are matched.

4. A vortex pump conduit structure according to claim 1, characterized in that: A filtering mechanism is arranged in the water inlet (101), and the filtering mechanism comprises a fixed shaft (8) and a filter screen (9). The fixed shaft (8) is fixed to the inner wall of the internal channel (3), one end of the fixed shaft (8) is provided with a thread, a limit support ring (10) is fixedly connected to the fixed shaft (8), and the end of the fixed shaft (8) with the thread passes through the filter screen (9) and extends to the outside of the filter screen (9).

5. A vortex pump conduit structure according to claim 4, characterized in that: An anti-slip pad (11) is sleeved on one side of the fixed shaft (8) and located on the filter screen (9); a locking sleeve (12) is threadedly connected to one end of the fixed shaft (8) with a thread, and protrusions (13) are fixedly connected to both sides of the locking sleeve (12).

6. A vortex pump conduit structure according to claim 4, characterized in that: Auxiliary support rods (14) in a ring array are fixedly connected to the limiting support ring (10), a groove is provided on the limiting support ring (10), and a limiting protrusion (15) is fixedly connected to one side of the filter screen (9) and located in the groove of the limiting support ring (10).

Images