Marine cooling water purification system and purification method

Abstract

The present invention relates to a marine cooling water purification system, which is characterized in that the purification system comprises a cooling water inlet (0), a cooling water tank water pump (1), a water pump front crushing tool (2), a water pump rear crushing tool (3), a filter tank (4), a backwashing water inlet tank (5), a backwashing water outlet tank (6), a water pump inlet pressure sensor (7), a backwashing submersible pump (8), a cooling water tank (9), and a controller (10); by arranging the water pump front crushing tool and the water pump rear crushing tool on the front and rear sides of the cooling water tank water pump, respectively, impurities such as soft aquatic plants, plastic bags, and water organisms contained in the water body are crushed and removed at the front and rear positions of the cooling water tank water pump, so as to prevent the impurities from entering the cooling system and affecting the function of the cooling water, and to prevent the impurities from accumulating near the cooling water tank water pump for a long time and causing influence and damage to the structure of the cooling water tank water pump itself and the cooling water inlet.

Description

Technical Field

[0001] The invention relates to the technical field of ship cooling water purification, and in particular to a ship cooling water purification system and a purification method. Background Art

[0002] Due to the water transport environment, ship cooling water is often obtained locally, directly from the operating environment, and the cooling water can be fresh water or seawater. However, in the process of cooling water intake, soft aquatic plants, plastic bags, aquatic organisms, etc. contained in the water body will inevitably be sucked in, affecting the normal function of the cooling water; and for the equipped filter screen, these impurities will adhere to the filter screen for a long time, which will also cause structural damage to the filter screen and reduce its life; and in the long-distance water transport environment, it is impossible to frequently replace the filter screen. Summary of the invention

[0003] In order to solve the defects and shortcomings in the above-mentioned prior art, the present invention provides a marine cooling water purification system and purification method.

[0004] The technical solution for which the present invention seeks protection is as follows:

[0005] A marine cooling water purification system, characterized in that: the purification system comprises a cooling water inlet, a cooling water tank water pump, a water pump front crushing tool, a water pump rear crushing tool, a filter tank, a backwash water inlet tank, a backwash water outlet tank, a water pump inlet pressure sensor, a backwash submersible pump, a cooling water tank, and a controller; wherein,

[0006] The cooling water tank water intake pump is arranged near the cooling water inlet;

[0007] The water pump front crushing cutter is arranged at the front side of the cooling water tank water pump and is located between the cooling water tank water pump and the cooling water inlet;

[0008] The water pump rear crushing cutter is arranged at the rear side of the cooling water tank water pump and is located between the cooling water tank water pump and the filter tank;

[0009] The filter cabin is arranged at the rear side of the crushing cutter after the water intake pump, and a multi-layer filter device is arranged in the filter cabin;

[0010] The backwash water inlet tank is arranged on the upper side of the filter tank and close to the water outlet of the filter tank;

[0011] The backwash water outlet tank is arranged at the lower side of the filter tank and close to the water inlet of the filter tank;

[0012] The water intake pump water inlet pressure sensor is arranged at the location of the cooling water tank water intake pump to detect the cooling water inlet pressure;

[0013] The water inlet pressure sensor of the water intake pump is connected to the controller to send the real-time detection value of the cooling water inlet pressure to the controller;

[0014] The controller is connected to the backwash submersible pump to control the start and stop of the backwash submersible pump according to the real-time detection result of the water inlet pressure sensor of the water intake pump;

[0015] The backwash submersible pump is respectively connected to the backwash water inlet tank and the backwash water outlet tank to drive the backwash water inlet tank and the backwash water outlet tank to work;

[0016] The cooling water cabin is arranged at the rear side of the filter cabin.

[0017] Furthermore, the crushing cutter in front of the water intake pump and the crushing cutter in rear of the water intake pump perform crushing actions synchronously with the same power.

[0018] Furthermore, the crushing cutter in front of the water intake pump and the crushing cutter in rear of the water intake pump perform crushing actions independently with different powers.

[0019] Furthermore, the working power of the crushing cutter disposed in front of the water intake pump is greater than the working power of the crushing cutter disposed after the water intake pump.

[0020] Furthermore, the multi-layer filtering device in the filtering cabin uses multi-layer filtering screens, the spacing between each layer of filtering screens is equal and the mesh number of each layer of filtering screens gradually increases along the direction of cooling water inflow.

[0021] Furthermore, the multi-layer filtering device in the filtering cabin is made of non-metallic material.

[0022] Further, the flow rate of the backwash water entering the filter cabin is smaller than the flow rate of the cooling water entering the filter cabin.

[0023] Furthermore, when and only when the deviation between the real-time value of the detection result of the water intake pump inlet pressure sensor and the preset value exceeds the preset threshold, the controller controls the backwash submersible pump to start working to drive the backwash water from the backwash inlet tank to flow into the filter tank and finally into the backwash outlet tank.

[0024] Furthermore, the controller also adjusts the working power of the front crushing tool and the rear crushing tool of the water intake pump according to the deviation between the real-time value of the detection result of the water inlet pressure sensor of the water intake pump and the preset value exceeding the preset threshold.

[0025] Furthermore, the present invention also provides a method for purifying marine cooling water, which is characterized by comprising the following steps:

[0026] 1) Turn on the cooling water tank water pump to drive the cooling water flowing out of the cooling water inlet into the evolution system; at the same time, the water inlet pressure sensor of the water pump detects the real-time water inlet pressure value at the location of the cooling water tank water pump;

[0027] 2) The crushing cutter before the water pump and the crushing cutter after the water pump crush the impurities attached to the front and rear sides of the cooling water tank water pump respectively;

[0028] 3) When the deviation between the real-time value of the detection result of the water intake pump water inlet pressure sensor and the preset value exceeds the preset threshold, the controller controls the backwash submersible pump to start working to drive the backwash water from the backwash inlet tank to the filter tank and finally into the backwash outlet tank;

[0029] 4) When the deviation between the real-time value of the detection result of the water inlet pressure sensor of the water intake pump and the preset value exceeds the preset threshold, the controller adjusts the working power of the front crushing tool of the water intake pump and the rear crushing tool of the water intake pump accordingly according to the magnitude of the deviation between the real-time value of the detection result of the water inlet pressure sensor of the water intake pump and the preset value exceeding the preset threshold;

[0030] 5) The cooling water enters the filter cabin and is filtered before being stored in the cooling water tank.

[0031] The beneficial effects achieved by the present invention compared with the prior art are:

[0032] 1) The present invention provides a front crushing cutter and a rear crushing cutter on the front and rear sides of the cooling water tank water pump, respectively, so as to crush and remove impurities such as soft aquatic plants, plastic bags, and aquatic organisms contained in the water body at the front and rear positions of the cooling water tank water pump, thereby preventing them from entering the cooling system and affecting the function of the cooling water, and preventing them from accumulating near the cooling water tank water pump for a long time and affecting and damaging the structure of the cooling water tank water pump itself and the cooling water inlet;

[0033] 2) The present invention provides a backwash inlet tank and a backwash outlet tank in the filter cabin, so that when cooling water enters the cooling water tank through the filter cabin, impurities attached to the filter screen of the filter cabin can be effectively removed by backwash inlet water, thereby avoiding damage to the filter screen of the filter cabin due to long-term accumulation of impurities, and avoiding the dilemma of being unable to frequently replace the filter screen in a long-term water transport environment;

[0034] 3) Based on the comparison relationship between the deviation between the real-time value of the detection result of the water inlet pressure sensor of the water intake pump and the preset value and the preset threshold value, the controller controls the backwash submersible pump to start working to drive the backwash water from the backwash inlet tank to flow into the filter tank and finally into the backwash outlet tank, thereby achieving the backwash cleaning of the filter in place, accurately, and timely. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 The present invention is a schematic structural diagram of a marine cooling water purification system. DETAILED DESCRIPTION

[0036] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the patent of the present invention.

[0037] like Figure 1 The figure shows a marine cooling water purification system provided by the present invention.

[0038] The specific technical solution is as follows:

[0039] A marine cooling water purification system, the purification system comprising a cooling water inlet 0, a cooling water tank water pump 1, a water pump front crushing tool 2, a water pump rear crushing tool 3, a filter tank 4, a backwashing water inlet tank 5, a backwashing water outlet tank 6, a water pump inlet pressure sensor 7, a backwashing submersible pump 8, a cooling water tank 9, and a controller 10; wherein,

[0040] The cooling water tank water intake pump 1 is arranged near the cooling water inlet 0;

[0041] The water pump front crushing cutter 2 is arranged in front of the cooling water tank water pump 1 and is located between the cooling water tank water pump 1 and the cooling water inlet 0;

[0042] The water pump rear crushing cutter 3 is arranged at the rear side of the cooling water tank water pump 1 and is located between the cooling water tank water pump 1 and the filter tank 4;

[0043] The filter cabin 4 is arranged at the rear side of the crushing cutter 3 after the water intake pump, and a multi-layer filter device is arranged in the filter cabin 4;

[0044] The backwash water inlet tank 5 is arranged on the upper side of the filter tank 4 and close to the water outlet of the filter tank 4;

[0045] The backwash water outlet tank 6 is arranged at the lower side of the filter tank 4 and close to the water inlet of the filter tank 4;

[0046] The water intake pump water inlet pressure sensor 7 is arranged at the location of the cooling water tank water intake pump 1 to detect the cooling water inlet pressure;

[0047] The water pump inlet pressure sensor 7 is connected to the controller 10 to send the real-time detection value of the cooling water inlet pressure to the controller 10;

[0048] The controller 10 is connected to the backwash submersible pump 8 to control the start and stop of the backwash submersible pump 8 according to the real-time detection result of the water inlet pressure sensor 7 of the water intake pump;

[0049] The backwash submersible pump 8 is respectively connected to the backwash water inlet tank 5 and the backwash water outlet tank 6 to drive the backwash water inlet tank 5 and the backwash water outlet tank 6 to work;

[0050] The cooling water cabin 9 is arranged at the rear side of the filter cabin 4 .

[0051] Specifically, the front crushing tool 2 of the water intake pump and the rear crushing tool 3 of the water intake pump perform crushing actions synchronously with the same power, so that impurities such as soft aquatic plants, plastic bags, aquatic organisms, etc. located before and after the front crushing tool 2 of the water intake pump can be crushed by crushing tools of the same power, and the synchronous control operation is simple.

[0052] Specifically, the crushing tool 2 at the front of the water pump and the crushing tool 3 at the rear of the water pump perform crushing actions separately with different powers, so that impurities such as soft aquatic plants, plastic bags, aquatic organisms, etc. located before and after the crushing tool 2 at the front of the water pump can be crushed by crushing tools of corresponding different powers according to the different degrees of attachment of the impurities. The corresponding crushing power can be provided according to actual demand conditions, thereby saving energy loss on the basis of achieving accurate and effective crushing of impurities.

[0053] Specifically, the working power of the front crushing tool 2 of the water intake pump is greater than the working power of the rear crushing tool 3 of the water intake pump. This is because while the front crushing tool 2 of the water intake pump rotates with a larger working power to achieve the crushing operation, it may also rotate and throw out other larger impurities approaching the front crushing tool 2 of the water intake pump to further move away from the cooling water tank water intake pump 1, thereby further improving the cleanliness of the cooling water inlet and reducing the working intensity of the crushing tool.

[0054] Specifically, the multi-layer filtering device in the filter cabin 4 uses a multi-layer filter screen, the spacing between each layer of the filter screen is equal and the mesh number of each layer of the filter screen gradually increases along the direction of the cooling water inflow, so as to effectively achieve the effective filtering effect of the cooling water inflow; preferably, the total spacing of the multi-layer filter screen can be set as an adjustable spacing, when the cooling water inflow flow rate increases, the spacing between each layer of the filter screen can be controlled to gradually increase and be equal to meet the filtering requirements of the gradually increasing cooling water inflow flow rate; as a further preference, the spacing between each layer of the filter screen can also be set to be unequal and adjustable, so as to be adjusted in real time according to the size of the cooling water inflow flow rate; for example, when the cooling water inflow flow rate increases, the spacing between each layer of the filter screen on the front side can be appropriately increased and greater than the spacing between each layer of the filter screen on the rear side to achieve the effective coarse filtration requirement when the cooling water inflow flow rate increases, or the spacing between each layer of the filter screen on the front side can be appropriately reduced and less than the spacing between each layer of the filter screen on the rear side to achieve the effective fine filtration requirement when the cooling water inflow flow rate increases, so as to have a wide range of applications and can meet different filtering requirements of users; preferably, the spacing adjustment of the multi-layer filter screen is controlled by the controller 10.

[0055] Specifically, the multi-layer filter device in the filter cabin 4 is made of non-metallic materials. Since the metal material is in an underwater working environment for a long time, it is easy to rust over a long period of time, and is therefore not suitable for use in an underwater working environment.

[0056] Specifically, the flow rate of the backwash water entering the filter cabin 4 is smaller than the flow rate of the cooling water entering the filter cabin 4 , thereby ensuring that the cooling water can smoothly pass through the filter cabin while backwashing the filter cabin 4 .

[0057] Specifically, when and only when the deviation between the real-time value of the detection result of the water intake pump inlet pressure sensor 7 and the preset value exceeds the preset threshold, the controller 10 controls the backwash submersible pump 8 to start working to drive the backwash water from the backwash inlet tank 5 to flow into the filter tank 4 and finally into the backwash outlet tank 6; when the deviation between the real-time value of the detection result and the preset value exceeds the preset threshold, it means that the cooling water inlet has been completed or the flow rate has gradually increased to a new height. Therefore, when the cooling water inlet is completed or the flow rate suddenly increases, the filter tank needs to be cleaned.

[0058] Specifically, the controller 10 also adjusts the working power of the front crushing tool 2 and the rear crushing tool 3 of the water pump according to the size of the deviation between the real-time value of the detection result of the water inlet pressure sensor 7 and the preset value exceeding the preset threshold. For example, when the deviation between the real-time value of the detection result and the preset value exceeds the preset threshold by a large margin, it means that the cooling water inflow has been completed or the flow rate has gradually increased to a new height. The working power of the front crushing tool 2 and the rear crushing tool 3 of the water pump can be increased to further enhance the crushing effect, so as to meet the crushing and removal of impurities near the water pump 1 when it is almost completed, or the enhancement of the crushing effect of impurities near the water pump 1 when the flow rate increases.

[0059] Specifically, the present invention also provides a method for purifying marine cooling water, comprising the following steps:

[0060] 1) Turn on the cooling water tank water pump 1 to drive the cooling water flowing out from the cooling water inlet 0 into the evolution system; at the same time, the water pump inlet pressure sensor 7 detects the real-time water inlet pressure value at the location of the cooling water tank water pump 1;

[0061] 2) The crushing cutter 2 before the water pump and the crushing cutter 3 after the water pump crush the impurities attached to the front and rear sides of the water pump 1 in the cooling water tank respectively;

[0062] 3) When the deviation between the real-time value of the detection result of the water intake pump water inlet pressure sensor 7 and the preset value exceeds the preset threshold, the controller 10 controls the backwash submersible pump 8 to start working to drive the backwash water from the backwash inlet tank 5 into the filter tank 4 and finally into the backwash outlet tank 6;

[0063] 4) When the deviation between the real-time value of the detection result of the water inlet pressure sensor 7 of the water intake pump and the preset value exceeds the preset threshold, the controller 10 adjusts the working power of the front crushing cutter 2 of the water intake pump and the rear crushing cutter 3 of the water intake pump according to the magnitude of the deviation between the real-time value of the detection result of the water inlet pressure sensor 7 of the water intake pump and the preset value exceeding the preset threshold;

[0064] 5) The cooling water enters the filter tank 4 and is filtered before entering the cooling water tank 9 for storage.

[0065] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A method for purifying a marine cooling water purification system, the marine cooling water purification system comprising a cooling water inlet (0), a cooling water tank water pump (1), a water pump front crushing cutter (2), a water pump rear crushing cutter (3), a filter tank (4), a backwashing water inlet tank (5), a backwashing water outlet tank (6), a water pump inlet pressure sensor (7), a backwashing submersible pump (8), a cooling water tank (9), and a controller (10); wherein: The cooling water tank water pump (1) is arranged near the cooling water inlet (0); the water pump front crushing cutter (2) is arranged in front of the cooling water tank water pump (1) and is located between the cooling water tank water pump (1) and the cooling water inlet (0); The water intake pump rear crushing cutter (3) is arranged at the rear side of the cooling water tank water intake pump (1) and is located between the cooling water tank water intake pump (1) and the filter tank (4); The filter chamber (4) is arranged at the rear side of the crushing cutter (3) after the water intake pump, and a multi-layer filter device is arranged in the filter chamber (4); The backwash water inlet chamber (5) is arranged on the upper side of the filter chamber (4) and close to the water outlet of the filter chamber (4); The backwash water outlet chamber (6) is arranged at the lower side of the filter chamber (4) and close to the water inlet of the filter chamber (4); The water intake pump water inlet pressure sensor (7) is arranged at the location of the cooling water tank water intake pump (1) to detect the cooling water inlet pressure; The water intake pump water inlet pressure sensor (7) is connected to the controller (10) to send a real-time detection value of the cooling water inlet pressure to the controller (10); The controller (10) is connected to the backwashing submersible pump (8) to control the start and stop of the backwashing submersible pump (8) according to the real-time detection result of the water intake pump water inlet pressure sensor (7); The backwash submersible pump (8) is respectively connected to the backwash water inlet tank (5) and the backwash water outlet tank (6) to drive the backwash water inlet tank (5) and the backwash water outlet tank (6) to work; the cooling water tank (9) is arranged at the rear side of the filter tank (4); When and only when the deviation between the real-time value of the detection result of the water intake pump water inlet pressure sensor (7) and the preset value exceeds a preset threshold value, the controller (10) controls the backwash submersible pump (8) to start working so as to drive the backwash water to flow from the backwash water inlet chamber (5) into the filter chamber (4) and finally into the backwash water outlet chamber (6); The controller (10) also adjusts the working power of the front crushing cutter (2) and the rear crushing cutter (3) of the water intake pump according to the deviation between the real-time value of the detection result of the water intake pump water inlet pressure sensor (7) and the preset value exceeding the preset threshold value; It is characterized by comprising the following steps: 1) Turn on the cooling water tank water intake pump (1) to drive the cooling water flowing out of the cooling water inlet (0) into the evolution system; at the same time, the water intake pump water intake pressure sensor (7) detects the real-time water intake pressure value at the location of the cooling water tank water intake pump (1); 2) The crushing cutter (2) disposed in front of the water pump and the crushing cutter (3) disposed in rear of the water pump crush the impurities attached to the front and rear sides of the water pump (1) when the cooling water tank is opened; 3) When the deviation between the real-time value of the detection result of the water intake pump water inlet pressure sensor (7) and the preset value exceeds a preset threshold value, the controller (10) controls the backwash submersible pump (8) to start working so as to drive the backwash water to flow from the backwash water inlet chamber (5) into the filter chamber (4) and finally into the backwash water outlet chamber (6); 4) when the deviation between the real-time value of the detection result of the water inlet pressure sensor (7) of the water intake pump and the preset value exceeds a preset threshold value, the controller (10) adjusts the working power of the front crushing cutter (2) of the water intake pump and the rear crushing cutter (3) of the water intake pump according to the magnitude of the deviation between the real-time value of the detection result of the water inlet pressure sensor (7) of the water intake pump and the preset value exceeding the preset threshold value; 5) The cooling water enters the filter tank (4) and is filtered before entering the cooling water tank (9) for storage.

2. The purification method of a marine cooling water purification system according to claim 1, characterized in that: The crushing cutter (2) disposed in front of the water intake pump and the crushing cutter (3) disposed in rear of the water intake pump perform crushing actions synchronously with the same power.

3. The purification method of a marine cooling water purification system according to claim 1, characterized in that: The crushing cutter (2) disposed in front of the water intake pump and the crushing cutter (3) disposed at the rear of the water intake pump perform crushing actions independently at different powers.

4. The purification method of a marine cooling water purification system according to claim 3, characterized in that: The working power of the crushing cutter (2) disposed in front of the water intake pump is greater than the working power of the crushing cutter (3) disposed after the water intake pump.

5. The purification method of a marine cooling water purification system according to claim 1, characterized in that: The multi-layer filtering device in the filtering cabin (4) uses a multi-layer filtering screen, the spacing between each layer of the filtering screen is equal and the mesh size of each layer of the filtering screen gradually increases along the direction in which the cooling water flows in.

6. The purification method of a marine cooling water purification system according to claim 1, characterized in that: The multi-layer filtering device in the filtering chamber (4) is made of non-metallic material.

7. The purification method of a marine cooling water purification system according to claim 1, characterized in that: The flow rate of the backwash water entering the filter chamber (4) is smaller than the flow rate of the cooling water entering the filter chamber (4).

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