Sea water pump

By using an ocean current turbine to drive an air compressor and an air pump, seawater is extracted using ocean current kinetic energy, solving the problems of high energy consumption and environmental pollution associated with existing seawater pumps, and achieving clean and efficient seawater extraction.

CN224228801UActive Publication Date: 2026-05-12POWERCHINA ZHONGNAN ENG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
POWERCHINA ZHONGNAN ENG
Filing Date
2025-05-16
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Existing seawater pumps consume a lot of energy and pollute the environment when pumping seawater.

Method used

An ocean current turbine drives an air compressor, which in turn draws seawater through an air pump. The kinetic energy of the ocean current is converted into mechanical energy to drive the air compressor and air pump. This eliminates the need for electricity and uses compressed air to drive the seawater pump, thus avoiding pollution.

Benefits of technology

It achieves seawater extraction without consuming energy or polluting the environment, and stores excess air in air tanks to ensure the stability of airflow supply.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a sea water pump which comprises an ocean current turbine which comprises a turbine body and a first transmission shaft. The air compressor comprises a compressor body, an airflow output end and a second transmission shaft, and the second transmission shaft is in transmission connection with the first transmission shaft; the air pump comprises an air pump body, an airflow input end, a water flow input end and a water flow output end; and the airflow input end is communicated with the airflow output end through an air path. Due to the adoption of the technical scheme, compared with the prior art, the device does not need to consume electric energy, so that the device does not consume energy and does not cause environmental pollution. And secondly, redundant compressed air can be stored through the air storage tank, and air flow can be supplemented to the air path when needed.
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Description

Technical Field

[0001] This utility model relates to the field of water supply equipment technology, specifically to a seawater pump. Background Technology

[0002] With global population growth, socio-economic development, and changing consumption patterns, water demand and consumption are constantly rising, while freshwater resources are extremely limited. Countries primarily rely on seawater resources to address their water shortages. Employing economical, efficient, energy-saving, and environmentally friendly methods for seawater extraction plays a crucial role in solving water scarcity problems.

[0003] Currently, most seawater pumps used for seawater extraction are electric pumps or diesel pumps. These types of pumps have the disadvantages of high energy consumption and environmental pollution. Summary of the Invention

[0004] This utility model provides a seawater pump to solve the technical problems of high energy consumption and environmental pollution of existing seawater pumps.

[0005] To achieve the above objectives, the present invention adopts the following technical solution.

[0006] A seawater pump, comprising:

[0007] The ocean current turbine includes the turbine body and the first drive shaft;

[0008] An air compressor includes a compressor body, an airflow output end, and a second drive shaft, wherein the second drive shaft is drively connected to the first drive shaft; and

[0009] An air pump includes an air pump body, an airflow inlet, a water inlet, and a water outlet; the airflow inlet and the airflow outlet are connected by an air passage.

[0010] When installing the aforementioned seawater pump, the ocean current turbine needs to be placed below the sea surface. The water inlet is connected to the seawater via a water pipe, and the water outlet is connected to the water supply network via a water pipe. Therefore, this invention utilizes seawater to drive the ocean current turbine, which in turn drives an air compressor. The air compressor transmits compressed air to the air pump, which then pumps the seawater into the water supply network. This process requires no electricity, thus avoiding both energy consumption and environmental pollution.

[0011] In some embodiments, the gas path is connected in parallel with a branch gas path, the branch gas path including a first branch gas path, a gas storage tank and a second branch gas path connected in sequence according to the airflow direction, and the first branch gas path and the second branch gas path are respectively provided with a first valve and a second valve.

[0012] Therefore, excess compressed air can be stored in the air tank and replenished to the air circuit when needed.

[0013] In some embodiments, the first valve is a pressure reducing valve and the second valve is a pressure increasing valve.

[0014] In some embodiments, a first pressure switch is provided on the first branch air line, and a second pressure switch is provided on the second branch air line; the opening threshold of the first pressure switch is consistent with that of the pressure reducing valve, and the opening threshold of the second pressure switch is consistent with that of the pressure increasing valve. Thus, when the air line pressure exceeds a set value, the first pressure switch and the pressure reducing valve open, directing part of the airflow in the first branch air line to the air storage tank. Once the air storage tank reaches its rated storage capacity, the safety valve automatically opens, releasing the excess airflow. When the air line pressure is lower than the starting value, the pressure increasing valve and the second pressure switch open, directing the airflow from the air storage tank to the second branch air line, thereby supplementing the airflow to the air pump.

[0015] In some embodiments, the first branch gas path and the second branch gas path are respectively provided with directional control valves, and the directional control valves are configured to allow gas to flow from the first branch gas path to the gas storage tank and from the gas storage tank to the second branch gas path.

[0016] In some embodiments, the gas storage tank is equipped with a safety valve.

[0017] In some embodiments, a first pressure sensor is provided on the gas line, and a second pressure sensor is provided on the gas storage tank.

[0018] In some embodiments, a protective net is also included, within which the current turbine is installed. This allows larger marine debris and organisms in the seawater to be kept out, preventing damage to the current turbine.

[0019] This utility model has at least the following technical effects or advantages:

[0020] 1. It does not consume electricity, so it neither consumes energy nor pollutes the environment.

[0021] 2. Excess compressed air can be stored in the air tank and replenished to the air circuit when needed. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of a seawater pump in one embodiment of the present invention. Detailed Implementation

[0023] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0024] See Figure 1 A seawater pump includes a current turbine 1, an air compressor 2, and an air pump 3.

[0025] The current turbine 1 includes a turbine body and a first drive shaft. The air compressor 2 includes a compressor body, an airflow output end, and a second drive shaft, which is connected to the first drive shaft. The air compressor 2 can be a reciprocating air compressor, equipped with a filtration system and a cooler. It generates air at a certain pressure during operation, which is then processed by the filtration system and cooler to form a dry and clean compressed airflow. The air pump 3 includes an air pump body, an airflow input end, a water flow input end, and a water flow output end. The airflow input end and the airflow output end are connected by an air passage 4. Preferably, the current turbine 1 is equipped with a protective net 5 to remove larger impurities and marine organisms from the seawater, preventing damage to the current turbine.

[0026] Furthermore, a branch gas path is connected in parallel to the gas path 4. The branch gas path includes a first branch gas path 61, a gas storage tank 7, and a second branch gas path 62 connected in sequence according to the airflow direction. A first valve 81 and a second valve 82 are respectively provided on the first branch gas path 61 and the second branch gas path 62, wherein the first valve 81 is a pressure reducing valve and the second valve 82 is a pressure increasing valve.

[0027] Furthermore, a first pressure switch 91 is provided on the first branch gas line 61, and a second pressure switch 92 is provided on the second branch gas line 62. The opening threshold of the first pressure switch 91 is the same as that of the pressure reducing valve, and the opening threshold of the second pressure switch 92 is the same as that of the pressure increasing valve.

[0028] Furthermore, the first gas path 61 and the second gas path 62 are each equipped with a directional control valve 10. The directional control valve 10 is configured to allow gas to flow from the first gas path 61 to the gas storage tank 7 and from the gas storage tank 7 to the second gas path 62. The directional control valve can be a one-way valve.

[0029] Furthermore, the gas path 4 is equipped with a first pressure sensor 11 and a pressure regulating valve 13, while the gas storage tank 7 is equipped with a second pressure sensor 12 and a safety valve 14. The pressure regulating valve 13 is used to adjust the pressure in the gas path 4, and the safety valve 14 is used to ensure that the pressure in the gas storage tank 7 does not exceed a safe value.

[0030] The ocean current turbine 1 is installed below the sea surface, while the air compressor 2, air pump 3, air passage 4, and air storage tank 7 are all installed on a stable platform above the sea surface. The water inlet is connected to a pumping pipe 15, which extends below the sea surface. The water outlet is connected to the water supply network 16 via a water pipe.

[0031] During operation, the seawater flow drives the ocean current turbine 1 to rotate. The ocean current turbine 1 converts the kinetic energy of the ocean current into mechanical energy. The kinetic energy drives the air compressor 2 to operate through the first drive shaft and the second drive shaft. The air compressor 2 generates air at a certain pressure. After being processed by the filtration system and cooler, the air forms a dry and clean compressed airflow. The airflow is transmitted to the air pump 3 through the air passage 4. The air pump 3 uses the airflow pressure in the air passage 4 to realize the operation of the pneumatic pump 3. The seawater is pumped into the water supply pipeline 16 through the water pumping pipe 15.

[0032] When the pressure in air passage 4 exceeds the set value, the first pressure switch 91 and the first valve (pressure reducing valve) 81 open, guiding part of the airflow in air passage 4 through the first branch air passage 61 to the air storage tank 7. After the air storage tank 7 reaches the rated storage capacity, the safety valve 13 will automatically open to release the excess airflow.

[0033] When the pressure in air passage 4 is lower than the starting value, the second pressure switch 92 and the second valve (pressurization valve) 82 open, directing the airflow from the air tank 7 to air passage 4 through the second branch air passage 62.

[0034] Similarly, it should be understood that, in order to simplify this disclosure and aid in understanding one or more of the various aspects of the invention, in the above description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof. However, this method of disclosure should not be interpreted as reflecting an intention that the claimed invention requires more features than expressly recited in each claim. Rather, as reflected in the claims, the inventive aspect lies in fewer than all features of a single foregoing disclosed embodiment. Therefore, the claims following the detailed description are hereby expressly incorporated into that detailed description, wherein each claim itself is a separate embodiment of the invention.

[0035] Furthermore, those skilled in the art will understand that although some embodiments described herein include certain features included in other embodiments but not others, combinations of features from different embodiments are meant to be within the scope of this invention and form different embodiments.

[0036] As used herein, unless otherwise specified, the use of ordinal numbers such as “first,” “second,” “third,” etc., to describe ordinary objects merely indicates different instances of similar objects and is not intended to imply that the objects being described must have a given order in time, space, ordering, or any other manner.

[0037] Although the present invention has been described with reference to a limited number of embodiments, those skilled in the art will understand from the foregoing description that other embodiments are conceivable within the scope of the present invention described herein. Furthermore, it should be noted that the language used in this specification has been chosen primarily for readability and edibility purposes, and not for interpreting or limiting the subject matter of the invention. Therefore, many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the appended claims. Regarding the scope of the invention, the disclosure made is illustrative and not restrictive, and the scope of the invention is defined by the appended claims.

[0038] Finally, it should be noted that this utility model does not explain in detail the common knowledge recognized by those skilled in the art. The above description is only a specific embodiment of this utility model and is not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A seawater pump, characterized in that, include: The ocean current turbine includes the turbine body and the first drive shaft; An air compressor includes a compressor body, an airflow output end, and a second drive shaft, wherein the second drive shaft is connected to the first drive shaft in a driving connection. and An air pump includes an air pump body, an airflow inlet, a water inlet, and a water outlet; the airflow inlet and the airflow outlet are connected by an air passage.

2. The seawater pump according to claim 1, characterized in that: The gas path is connected in parallel with a branch gas path, which includes a first branch gas path, a gas storage tank and a second branch gas path connected in sequence according to the airflow direction. The first branch gas path and the second branch gas path are respectively equipped with a first valve and a second valve.

3. The seawater pump according to claim 2, characterized in that: The first valve is a pressure reducing valve, and the second valve is a pressure increasing valve.

4. The seawater pump according to claim 3, characterized in that: A first pressure switch is provided on the first branch gas line, and a second pressure switch is provided on the second branch gas line; the opening threshold of the first pressure switch is the same as that of the pressure reducing valve, and the opening threshold of the second pressure switch is the same as that of the pressure increasing valve.

5. The seawater pump according to claim 2 or 3, characterized in that: The first gas path and the second gas path are respectively equipped with directional control valves, which are configured to allow gas to flow from the first gas path to the gas storage tank and from the gas storage tank to the second gas path.

6. The seawater pump according to claim 2 or 3, characterized in that: The gas storage tank is equipped with a safety valve.

7. The seawater pump according to claim 2 or 3, characterized in that: A first pressure sensor is provided on the gas line, and a second pressure sensor is provided on the gas storage tank.

8. The seawater pump according to claim 1, characterized in that: It also includes a protective net, within which the ocean current turbine is installed.