Marine injection pump
The marine jet pump addresses noise and vibration issues by incorporating noise reduction components with shock-absorbing pads and magnetic connections, enhancing operational safety and reducing noise interference.
Patent Information
- Application Number
- CN202421725647.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-22
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-07-22
AI Technical Summary
Traditional marine jet pumps generate significant noise and vibration during operation, interfering with ship communication and navigation equipment and posing safety risks.
A marine jet pump design featuring noise reduction components with shock-absorbing pads and hollow interlayers, magnetic connections, and sound insulation materials to reduce noise and vibration.
The design effectively minimizes noise interference with ship systems, maintaining a quiet onboard environment and ensuring safe operation.
Smart Images
Figure CN222277056U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of jet pumps, in particular to a marine jet pump. Background Art
[0002] In the field of shipbuilding industry, as a key power transmission device for marine jet pumps, its performance directly affects the operating efficiency and safety of the ship. However, due to its special structure and working principle, the traditional jet pump often produces obvious vibration and noise during operation, which not only affects the ride comfort of the ship, but also may cause damage to other equipment on the ship and even threaten the safety of the ship.
[0003] The working principle is to generate negative pressure through the high-speed rotating impeller, suck the liquid into the pump body, and then spray it out through the nozzle at high speed to form a strong thrust. However, due to the high-speed rotation of the impeller and the rapid flow of the liquid, a lot of noise will be generated. The existing jet pump structure is relatively simple and cannot isolate or reduce the noise generated. These noises will interfere with the ship's communication and navigation equipment, thereby affecting the safe operation of the ship.
[0004] Therefore, a marine jet pump is needed to improve the above problems. Utility Model Content
[0005] The purpose of the utility model is to provide a marine jet pump to solve the problems raised in the above background technology.
[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0007] A marine jet pump comprises a pump body, which comprises a water inlet portion, a mixing portion and a pressure diffuser portion from left to right, a working water inlet end being provided at the end of the water inlet portion, a suction water inlet end being provided at the lower end of the water inlet portion, a noise reduction component being provided on the outside of the mixing portion and the pressure diffuser portion, the noise reduction component comprising a mixing portion noise reduction part and a pressure diffuser portion noise reduction part, the mixing portion noise reduction part and the pressure diffuser portion noise reduction part being mated with each other, a mating convex ring mating with the mixing portion noise reduction part being provided on the outside of the water inlet portion, the mixing portion noise reduction part and the pressure diffuser portion noise reduction part being both conveniently and detachably provided.
[0008] As a preferred solution of the utility model, the mixing section noise reduction component includes a group of symmetrically arranged and mating outer shells a, a gap is formed between the inner side of the outer shells a on both sides and the outer side of the mixing section, a shock-absorbing pad is filled in the gap, and a hollow interlayer is opened inside the outer shells a on both sides.
[0009] As a preferred solution of the utility model, the shock-absorbing cushion layer is made of polyethylene material.
[0010] As a preferred solution of the utility model, a docking groove is provided at the end of the shell a on one side, and a docking convex strip which is plugged into the docking groove is provided at the end of the shell a on the other side, and the docking convex strip is a strong magnetic strip.
[0011] As a preferred solution of the utility model, one end of the shell a on both sides is fixedly connected with a docking ring, and the end of the docking convex ring is provided with a threaded groove that is screwed with the docking ring.
[0012] As a preferred solution of the utility model, the noise reduction component of the diffuser part includes a group of symmetrically arranged shells b, the shells b on both sides are matched and connected, the interiors of the shells b on both sides are provided with a plurality of pads abutting against the outer sides of the diffuser part, the interiors of the shells b on both sides are hollow, and the ends of the shells b on both sides are provided with convex ends that are screwed together with the ends of the shell a.
[0013] As a preferred solution of the present invention, strong magnets with opposite magnetic properties are respectively provided at the ends of the shell b on both sides.
[0014] Compared with the prior art, the beneficial effects of the utility model are:
[0015] The utility model provides a shell component for shock and noise reduction on the outer side of the pump body, thereby reducing the noise generated by the pump body when in use, avoiding interference of the noise to the communication and navigation equipment of the ship, and maintaining the safe operation of the ship. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0017] Figure 2 It is a side cross-sectional schematic diagram of the utility model;
[0018] Figure 3 It is a front view cross-sectional schematic diagram of the utility model.
[0019] In the figure: outer shell a1, outer shell b2, pump body 3, working water inlet end 4, suction water inlet end 5, docking convex ring 6, docking ring 7, docking groove 8, hollow interlayer 9, shock-absorbing cushion layer 10, mixing chamber 11, pressure diffusion chamber 12, cushion strip 13, docking convex strip 14. DETAILED DESCRIPTION
[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.
[0021] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively below with reference to the relevant. Several embodiments of the utility model are given. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.
[0022] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.
[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.
[0024] See also Figure 1-3 , the utility model provides a technical solution for a marine jet pump:
[0025] For example, please refer to Figure 1 , 2 And 3, a marine jet pump, including a pump body 3, the pump body 3 is composed of a water inlet part, a mixing part and a pressure diffuser part from left to right, a working water inlet end 4 is arranged at the end of the water inlet part, a suction water inlet end 5 is arranged at the lower end of the water inlet part, a noise reduction component is arranged on the outside of the mixing part and the pressure diffuser part, the noise reduction component includes a mixing part noise reduction part and a pressure diffuser part noise reduction part, the mixing part noise reduction part and the pressure diffuser part noise reduction part are matched and docked, a docking convex ring 6 matched and docked with the mixing part noise reduction part is arranged on the outside of the water inlet part, and the mixing part noise reduction part and the pressure diffuser part noise reduction part are both conveniently and detachably arranged.
[0026] The noise reduction components of the mixing section and the diffuser section are set to absorb and isolate the noise generated when various parts of the pump body are in use, reducing the possibility of noise interference with ship communications and navigation equipment, and maintaining a quiet onboard environment. The entire noise reduction assembly is easy to disassemble and can be easily disassembled and assembled for use.
[0027] Please refer to Figure 1 , 2And 3, the mixing section noise reduction component includes a group of symmetrically arranged and mating shells a1, the inner sides of the shells a1 on both sides and the outer side of the mixing section form a gap, the gap is filled with a shock-absorbing pad layer 10, and the interiors of the shells a1 on both sides are provided with a hollow interlayer 9, and the shock-absorbing pad layer 10 is made of polyethylene material.
[0028] The setting of the shock-absorbing pad 10 can absorb the vibration generated by the mixing part to prevent the entire pump body 3 from vibrating too much. At the same time, the setting of the hollow interlayer 9 can reduce noise and reduce the impact of noise on navigation. Sound insulation cotton can also be added between the shock-absorbing pad 10 and the outer shell a1 to improve the sound insulation effect.
[0029] Please refer to Figure 1 , 2 and 3, a docking groove 8 is provided at the end of one side of the shell a1, and a docking convex strip 14 is provided at the end of the other side of the shell a1 for plugging into the docking groove 8, and the docking convex strip 14 is a strong magnetic strip, and one end of the shell a1 on both sides is fixedly connected with a docking ring 7, and a threaded groove is provided at the end of the docking convex ring 6 for screwing into the docking ring 7.
[0030] The shell a1 is docked by the docking convex strip 14 and the docking groove 8, and is kept tightly connected by magnetic attraction. After docking, the shell a1 is screwed together by the docking ring 7 and the docking convex ring 6 to keep the installation fixed.
[0031] The noise reduction component of the diffuser part includes a group of symmetrically arranged shells b2. The shells b2 on both sides are butt-jointed. A number of pads 13 abutting against the outer side of the diffuser are arranged inside the shells b2 on both sides. The interiors of the shells b2 on both sides are hollow. The ends of the shells b2 on both sides are provided with convex ends that are screwed together with the ends of the shell a1. The ends of the shells b2 on both sides are respectively provided with strong magnets with opposite magnetic properties.
[0032] The pad 13 is kept in close contact with the outer side of the diffuser, and plays a role in isolating noise transmission through the internal hollow space. Sound insulation cotton can also be filled between the outer shell b2 and the outer side of the diffuser to further improve the noise isolation effect.
[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A marine jet pump, comprising a pump body (3), wherein the pump body (3) is composed of a water inlet portion, a mixing portion and a pressure diffuser portion from left to right, a working water inlet end (4) is provided at the end of the water inlet portion, and a suction water inlet end (5) is provided at the lower end of the water inlet portion, characterized in that: A noise reduction component is arranged on the outside of the mixing section and the diffuser section, and the noise reduction component includes a mixing section noise reduction component and a diffuser section noise reduction component. The mixing section noise reduction component and the diffuser section noise reduction component are docked with each other. A docking convex ring (6) is arranged on the outside of the water inlet section and docked with the mixing section noise reduction component. The mixing section noise reduction component and the diffuser section noise reduction component are both conveniently detachable.
2. The marine jet pump according to claim 1, characterized in that: The mixing section noise reduction component comprises a group of symmetrically arranged and mating outer shells a (1), wherein the inner sides of the outer shells a (1) on both sides and the outer side of the mixing section form a gap, the gap is filled with a shock-absorbing cushion layer (10), and the interiors of the outer shells a (1) on both sides are provided with a hollow interlayer (9).
3. The marine jet pump according to claim 2, characterized in that: The shock-absorbing cushion layer (10) is made of polyethylene material.
4. The marine jet pump according to claim 2, characterized in that: A docking groove (8) is provided at the end of the shock-absorbing cushion shell a (1) on one side, and a docking convex strip (14) which is plugged into and cooperates with the docking groove (8) is provided at the end of the shock-absorbing cushion shell a (1) on the other side, and the docking convex strip (14) is a strong magnetic strip.
5. The marine jet pump according to claim 4, characterized in that: One end of the housing a (1) on both sides is fixedly connected to a docking ring (7), and the end of the docking protrusion (6) is provided with a threaded groove for screwing with the docking ring (7).
6. The marine jet pump according to any one of claims 2 to 5, characterized in that: The diffuser noise reduction component comprises a group of symmetrically arranged outer shells b (2), the outer shells b (2) on both sides are matched and connected, a plurality of pads (13) are arranged inside the outer shells b (2) on both sides for abutting against the outer side of the diffuser, the interior of the outer shells b (2) on both sides are hollow, and the ends of the outer shells b (2) on both sides are provided with convex ends for screwing with the ends of the outer shell a (1).
7. The marine jet pump according to claim 6, characterized in that: The ends of the shell b (2) on both sides are respectively provided with strong magnets with opposite magnetic properties.