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CN-224228951-U - Nozzle assembly for water suction pump and water suction pump

CN224228951UCN 224228951 UCN224228951 UCN 224228951UCN-224228951-U

Abstract

The application discloses a nozzle component for a water pump, which belongs to the technical field of water pumps, solves the problem of discontinuity when the existing fish suction pump pumps water and sucks fish, and mainly adopts the technical scheme that the nozzle component for the water pump comprises an inner shell with a first fluid channel at the inner side, the first fluid channel is provided with a first water inlet and a first water outlet, the inner shell is provided with a plurality of water spray openings, and the water spray openings are obliquely arranged towards the first water outlet direction relative to the radial direction of the inner shell, so that water sprayed into the first fluid channel by the water spray openings is inclined towards the first water outlet direction. The application is mainly used for realizing the continuity of the water suction pump during water pumping and fish sucking, and reducing the damage to fish.

Inventors

  • WU GUOQIANG

Assignees

  • 大衍智创(杭州)文化创意有限公司

Dates

Publication Date
20260512
Application Date
20250620

Claims (10)

  1. 1. The spout assembly for the water suction pump is characterized by comprising an inner shell, wherein a first fluid channel is arranged on the inner side of the inner shell, the first fluid channel is provided with a first water inlet and a first water outlet, a plurality of water spray ports are arranged on the inner shell, and the water spray ports are obliquely arranged towards the direction of the first water outlet relative to the radial direction of the inner shell, so that water sprayed into the first fluid channel by the water spray ports is obliquely arranged towards the direction of the first water outlet.
  2. 2. The spout assembly of claim 1 wherein the plurality of water spouts are circumferentially distributed on the inner housing along the axis of the inner housing and form a group of spout assemblies, and wherein the extensions of the water spout axes in the same group of spout assemblies intersect at the same location of the first fluid passage as the water flow junction of the group of spout assemblies.
  3. 3. The spout assembly of claim 2 wherein a plurality of groups of spout assemblies are provided at intervals along the axial direction of the first fluid passage, and the water flow junctions of the plurality of groups of spout assemblies are provided at intervals in sequence in the arrangement order of the corresponding spout assemblies along the flow direction of the fluid in the first fluid passage.
  4. 4. The nozzle assembly according to claim 1, wherein the inner housing is provided with a plurality of water spraying pipes, the water spraying ports are arranged in the corresponding water spraying pipes, the water spraying pipes protrude out of the inner wall of the first fluid channel and are obliquely arranged towards the first water outlet direction relative to the radial direction of the inner housing, and the parts of the water spraying pipes protruding out of the first fluid channel are of streamline structures.
  5. 5. The spout assembly for a water pump of claim 4 wherein the water spray pipe is screw-coupled or welded to the inner housing.
  6. 6. The spout assembly of claim 4 wherein the water outlet end of the water jet is flush with the inner wall of the first fluid passage or the end face of the water outlet end of the water jet pipe is perpendicular to the axial direction of the water jet.
  7. 7. A spout assembly for a water pump as claimed in any one of claims 1 to 6, wherein the water jet comprises a water inlet section and a water outlet section which are communicated with each other, the inner diameter of the water inlet section is decreased from the water inlet end to the water outlet end, the inner diameter of the water outlet section is increased from the water inlet end to the water outlet end, and the inner diameter of the water outlet section at the water outlet end is larger than the inner diameter of the water inlet section at the water inlet end.
  8. 8. The spout assembly of claim 7 wherein the cone angle of the water intake section is 12 ° to 16 ° and the cone angle of the water outlet section is 24 ° to 28 °.
  9. 9. The water pump is characterized by comprising the nozzle assembly according to any one of claims 1 to 8, an outer shell sleeved on the outer side of the inner shell, wherein the inner shell is fixed with the outer shell, a second fluid channel is formed between the outer side of the inner shell and the outer shell in a surrounding mode, the second fluid channel is provided with a second water inlet, a propelling piece is arranged in the second fluid channel and used for propelling water flow in the second fluid channel to flow from the second water inlet to the direction of a water spray opening and spraying the water spray opening into the first fluid channel, and a driving assembly is used for driving the propelling piece and is arranged on the outer shell.
  10. 10. The water pump of claim 9, wherein the second water inlet is provided in the housing and the second water inlet is connected to an external water source through a water pipe.

Description

Nozzle assembly for water suction pump and water suction pump Technical Field The application relates to the technical field of water pumps, in particular to a nozzle assembly for a water pump and the water pump. Background In the fields of aquaculture, fishing, transportation, etc., water pumps are widely used. For example, in operations such as water changing in a fishpond, fishing operation, transferring before live fish transportation and the like, if a common water suction pump is used, the fish is easily sucked into the pump without taking protective measures, and the fish is injured or even dead. In the prior art, the centrifugal pump body is driven by utilizing the hydraulic principle to drive the blades in the centrifugal pump body to run at a high speed to form negative pressure fish suction, the impeller runner is wider, the double blades are mainly used, and the liquid inlet direction is perpendicular to the liquid outlet direction. The energy conversion efficiency is high, but the fish body rotates at a high speed through the blades, the damage is larger, and the death rate is higher. The water pump also uses high-speed flowing water flow to jet out from the nozzle to generate negative pressure, so that the fish water is discharged into the fish water separator along the extrusion pipe together with the high-pressure water flow in the injection cavity after passing through the suction port and the suction pipe, and the fish is obtained after water filtration. The pump has lower efficiency in sucking fish and pumping water, has obvious section sense and can not realize continuous pumping water and sucking fish. Disclosure of utility model The application provides a nozzle assembly for a water suction pump and the water suction pump, which aim to solve the problem that the water suction and the fish suction of the existing fish suction pump are discontinuous, can realize the continuity of the water suction pump in the water suction and the fish suction, and reduce the damage to fish. In order to achieve the purpose, the nozzle assembly for the water pump adopts the following technical scheme that the nozzle assembly comprises an inner shell, wherein a first fluid channel is arranged on the inner side of the inner shell, the first fluid channel is provided with a first water inlet and a first water outlet, a plurality of water spray ports are arranged on the inner shell, and the water spray ports are obliquely arranged towards the first water outlet direction relative to the radial direction of the inner shell, so that water sprayed into the first fluid channel by the water spray ports is obliquely arranged towards the first water outlet direction. The main principle of the scheme is that the water jet is inclined along the radial direction of the inner shell to the direction of the first water outlet, so that the sprayed water flow has a partial velocity along the axial direction of the first fluid channel (pointing to the first water outlet) when entering the first fluid channel. The axial component speed forms directional thrust to push water to move towards the water outlet, so that the axial flow trend of the whole fluid is enhanced. The inclined water flow, when mixed with the original water flow in the first fluid channel, increases the overall kinetic energy of the fluid through momentum transfer. On one hand, the high-speed jet drives the peripheral water body to accelerate, so that stronger negative pressure suction force (similar to Venturi effect) is formed, the fish sucking efficiency is improved, and on the other hand, the axial inclined water flow reduces turbulence and energy loss of the fluid in the channel, so that the energy is more concentrated in pushing the water flow to the water outlet. Traditional impeller pumps rely on high-speed rotating blades to generate suction, and fish are easy to hurt due to collision and shearing force. After the technical scheme is adopted, the application has the advantages that the fish is sucked by using mild negative pressure in a fluid driving mode without impellers, and the water flow stably flows along the axial direction, so that the direct mechanical damage of the blades to the fish body is avoided. The flow field formed by the inclined water flow is more uniform, so that the impact and extrusion of the fish body in the suction process are further reduced. Further, the plurality of water spray openings are circumferentially distributed on the inner shell along the axis of the inner shell and form a group of nozzle groups, and the extension lines of the water spray opening axes in the same group of nozzle groups are intersected at the same position of the first fluid channel, wherein the position is the water flow intersection point of the group of nozzle groups. By adopting the technical scheme, the water jet axis extension lines of the same group of nozzle groups are converged at the same water flow intersection point of the central lin