Filtering pipeline for seawater desalination

Abstract

This utility model relates to the field of pipeline technology, specifically to a filtration pipeline for seawater desalination. It includes a main pipe for flowing desalinated seawater, a branch pipe for sampling and testing the yellow water level, and a dosing pipe for removing the yellow water. The branch pipe includes a sampling tube for uniformly sampling the desalinated seawater, a filter box for filtering impurities such as sand and gravel, a testing tube for measuring indicators such as pH value, and a return pipe for returning the sample to the main pipe. The dosing pipe is inserted into the main pipe from the top and is located on the inlet side. The branch pipe is inserted into the main pipe from the side and is located on the outlet side. One end of the sampling tube is opposite to the flow direction of the desalinated seawater. This utility model uses a rotating joint to uniformly agitate the seawater, ensuring that the amount of yellow water per unit of seawater is representative of the average value. The cause of the yellow water is analyzed using a detector to address the hazards caused by the yellow water in a timely manner. Chemical agents are added through the dosing pipe to remove the yellow water, extending the service life of the pipeline fittings.

Description

Technical Field

[0001] This utility model relates to the field of pipeline technology, specifically to a filter pipeline for seawater desalination. Background Technology

[0002] In seawater desalination projects, "yellow water" can occur after the desalinated water enters the municipal pipe network for distribution. This deteriorates the chemical and biological stability of the water, and the desalinated seawater has a high boron content, high pH, ​​and low hardness. These characteristics are detrimental to drinking water safety. Currently, suitable control methods for "yellow water" in desalinated seawater include mixing the desalinated water with surface water before transportation or using remineralization processes at water plants to improve the stability of the effluent. However, since many factors influence the occurrence of "yellow water," such as effluent quality, pipe network material, whether the water supply is intermittent, and the type and dosage of disinfectants, a filtration system is needed to address the specific causes of yellow water and ensure safe drinking water.

[0003] Chinese patent document CN107477279A discloses a filter pipe, including a main pipe and a filter core tube. One end of the main pipe has internal threads on its inner wall. The filter core tube is a hollow cavity with a flange welded to one end and a cylinder at the other end. The flange diameter is larger than the cylinder diameter. The outer wall of the cylinder has external threads. The main pipe and the filter core tube are threaded together. The welded end of the flange contacts one end of the main pipe. The cylindrical cavity has an annular groove at the end away from the flange, and the annular groove is filled with a filter layer. This design provides filtration for water transported in the pipe and facilitates the disassembly of the filter core tube for cleaning impurities.

[0004] The above solution still has several areas for improvement: the yellow water is not evenly distributed in the pipes, and the sample flowing into the filter core tube is highly random; there is a lack of simple means to remove the yellow water, and the only way to remove the yellow water is to replace the pipe fittings. Utility Model Content

[0005] To address the problems of existing technologies, this utility model provides a filtration pipe for seawater desalination, comprising a main pipe for flowing desalinated seawater, a branch pipe for sampling and testing the yellow water value, and a dosing pipe for removing yellow water. The branch pipe includes a sampling pipe for uniformly sampling desalinated seawater, a filter box for filtering impurities such as sand and gravel, a detection pipe for measuring indicators such as pH value, and a return pipe for returning samples to the main pipe. The desalinated seawater in the main pipe flows in a unidirectional direction. The dosing pipe is inserted into the main pipe from the top and is located on the inlet side of the main pipe. The branch pipe is inserted into the main pipe from the side and is located on the outlet side of the main pipe. One end of the sampling pipe is opposite to the flow direction of the desalinated seawater, and the other end is connected to the top of the filter box. One end of the detection pipe is connected to the bottom of the filter box. The return pipe is connected to the other end of the detection pipe and inserted into the main pipe.

[0006] Preferably, the sampling tube is provided with a rotary joint, a connecting rod and a ring frame. The rotary joint is installed at the center of the ring frame, and the connecting rod is installed on the side of the ring frame and connected to the opening of the sampling tube.

[0007] Preferably, the rotary joint is equipped with a threaded rod and fan blades, the positioning platform is located at the center of the ring frame, the threaded rod is installed on the positioning platform and connected to the rotary joint, and the fan blade array is located on the side of the rotary joint.

[0008] Preferably, the filter box is connected to a filter element and a diverting pipe. One end of the diverting pipe is connected to the bottom of the filter box, and the other end is connected to a detection pipe. The filter element is installed inside the filter box.

[0009] Preferably, the detection tube is equipped with a disc, a probe, a data cable, and a detector. The disc is installed inside the detection tube, the probe is installed on the disc, one end of the data cable is connected to the bottom of the detection tube, and the other end is connected to the detector.

[0010] Preferably, the detector is equipped with an alarm, a display, and an adjustment knob. The alarm is located in the lower part of the detector, the display is located in the upper part of the detector, and the adjustment knob is located in the middle of the detector.

[0011] Preferably, the dosing tube includes a top ball, a funnel, and a pressure pump. The top ball is located at one end of the dosing tube and is in the main tube. The pressure pump is located at the other end of the dosing tube, and the funnel is located above the pressure pump.

[0012] Preferably, the mounting bracket is placed in the dosing tube, with one end of the spring connected to the mounting bracket and the other end connected to the top ball.

[0013] The advantages of this utility model compared to the prior art are:

[0014] 1. This utility model uses a rotary joint to stir seawater evenly, ensuring that the amount of yellow water in a unit of seawater has the ability to represent the average value. Specifically, the fan blades are impacted by the water flow to provide rotational force to the rotary joint to stir the desalinated seawater, and the threaded rod is used to guide the desalinated seawater in the main pipe to form a vortex, further ensuring that the sampled seawater can represent the average value.

[0015] 2. This utility model analyzes the cause of yellow water through a detector to promptly address the hazards caused by yellow water. Specifically, the entire system is used to install probes and ensure that water can flow normally through the detection tube. The data cable sends the detection results of the probes to the detector, which then issues an early warning for the occurrence of yellow water.

[0016] 3. This utility model removes yellow water by adding chemical agents through a dosing pipe, thus extending the service life of pipe fittings. Specifically, when the desalinated seawater quality in the main pipe is substandard, chemical agents such as NaOH, NaHCO3, Na2CO3, CaCl2, and Ca(OH)2 are added to the main pipe through the dosing pipe as a remedial measure to mineralize the desalinated water. Attached Figure Description

[0017] Figure 1 This is a three-dimensional diagram of a filter pipe used for seawater desalination.

[0018] Figure 2 This is a three-dimensional diagram of a separation tube in a filtration pipeline used for seawater desalination.

[0019] Figure 3 This is a three-dimensional diagram of a rotating joint in a filter pipe used for seawater desalination.

[0020] Figure 4 This is a drawing of a filter box part in a seawater desalination filter pipe.

[0021] Figure 5 This is a drawing of a detection tube in a filtration pipeline used for seawater desalination.

[0022] Figure 6 This is a cross-sectional view of a chemical dosing pipe in a seawater desalination filter pipeline.

[0023] The following are the labels in the diagram: 1. Main pipe; 2. Diverter pipe; 3. Sampling pipe; 31. Rotary joint; 311. Threaded rod; 312. Fan blade; 313. Positioning platform; 32. Connecting rod; 33. Ring frame; 4. Filter box; 41. Filter element; 42. Diverter pipe; 5. Detection pipe; 51. Through plate; 52. Probe; 53. Data cable; 54. Detector; 541. Alarm; 542. Display; 543. Adjustment knob; 6. Return pipe; 7. Dosing pipe; 71. Top ball; 711. Spring; 712. Mounting bracket; 72. Funnel; 73. Pressure pump. Detailed Implementation

[0024] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments.

[0025] See Figures 1-6As shown, a filtration pipe for seawater desalination includes a main pipe 1 for flowing desalinated seawater, a branch pipe 2 for sampling and testing the yellow water value, and a dosing pipe 7 for removing yellow water. The branch pipe 2 includes a sampling pipe 3 for uniformly sampling desalinated seawater, a filter box 4 for filtering impurities such as sand and gravel, a detection pipe 5 for measuring indicators such as pH value, and a return pipe 6 for returning the sample to the main pipe 1. The desalinated seawater in the main pipe 1 flows in one direction. The dosing pipe 7 is inserted into the main pipe 1 from the top and is located on the inlet side of the main pipe 1. The branch pipe 2 is inserted into the main pipe 1 from the side and is located on the outlet side of the main pipe 1. One end of the sampling pipe 3 is opposite to the flow direction of the desalinated seawater, and the other end is connected to the top of the filter box 4. One end of the detection pipe 5 is connected to the bottom of the filter box 4. The return pipe 6 is connected to the other end of the detection pipe 5 and inserted into the main pipe 1.

[0026] The pipeline uses sampling tube 3 to uniformly extract desalinated seawater from main pipe 1, ensuring accurate measurement of the average indicators per unit of seawater in main pipe 1. Filter box 4 is used to isolate solid impurities in the desalinated seawater to avoid affecting the accuracy of the test. Test tube 5 mainly detects water quality indicators such as pH value, dissolved oxygen, hardness, and alkalinity, as well as hydraulic conditions such as pipe material and fittings, and flow rate, as influencing factors to examine iron release and biofilm shedding. When the desalinated seawater in main pipe 1 does not meet the standards, chemical agents such as NaOH, NaHCO3, Na2CO3, CaCl2, and Ca(OH)2 are added to main pipe 1 through chemical dosing tube 7 as a remedial measure to mineralize the desalinated water.

[0027] See Figures 1-3 As shown, the sampling tube 3 is equipped with a rotating joint 31, a connecting rod 32 and a ring frame 33. The rotating joint 31 is installed at the center of the ring frame 33, and the connecting rod 32 is installed on the side of the ring frame 33 and connected to the opening of the sampling tube 3.

[0028] The rotary joint 31 is used to stir the desalinated seawater evenly, ensuring that the sampling tube 3 can extract the average value to improve accuracy. The ring frame 33 is used to install the rotary joint 31, and the connecting rod 32 is used to separate the ring frame 33 and the opening of the sampling tube 3, ensuring that the desalinated seawater can flow normally into the sampling tube 3.

[0029] See Figure 3 As shown, a threaded rod 311 and a fan blade 312 are installed on the rotary joint 31. The positioning table 313 is located at the center of the ring frame 33. The threaded rod 311 is installed on the positioning table 313 and connected to the rotary joint 31. The fan blade 312 array is arranged on the side of the rotary joint 31.

[0030] The impact of the water flow on the fan blade 312 provides rotational force to the rotary joint 31 to agitate the desalinated seawater. The threaded rod 311 is used to guide the desalinated seawater in the main pipe 1 to form a vortex, further ensuring that the sampled seawater can represent the average value.

[0031] See Figures 1-4 As shown, the filter box 4 is connected to the filter element 41 and the diverting pipe 42. One end of the diverting pipe 42 is connected to the bottom of the filter box 4, and the other end is connected to the detection pipe 5. The filter element 41 is installed inside the filter box 4.

[0032] As the desalinated seawater flows into the filter box 4 along the sampling pipe 3, the water pressure acts on the filter element 41 and filters out solid particles and other impurities through the filter element 41, reducing the impact of solid particles on the test results. At the same time, the filter box 4 is equipped with a flange for easy disassembly and discharge of solid particles, ensuring that the filtration performance will not be reduced.

[0033] See Figures 2-5 As shown, the detection tube 5 is equipped with a disk 51, a probe 52, a data cable 53, and a detector 54. The disk 51 is installed inside the detection tube 5, the probe 52 is installed on the disk 51, one end of the data cable 53 is connected to the bottom of the detection tube 5, and the other end is connected to the detector 54.

[0034] The tube 51 is used to install the probe 52 and ensure that the water flow can pass through the detection tube 5 normally. The data line 53 sends the detection results of the probe 52 to the detector 54, which then provides an early warning of the occurrence of yellow water.

[0035] See Figure 5 As shown, the detector 54 is equipped with an alarm 541, a display 542 and an adjustment knob 543. The alarm 541 is located in the lower part of the detector 54, the display 542 is located in the upper part of the detector 54, and the adjustment knob 543 is located in the middle of the detector 54.

[0036] The adjustment knob 543 is used to manually control the threshold of the detection index. When the detection index exceeds the threshold, the alarm 541 sounds and opens the dosing tube 7 to remedy and remove the yellow water.

[0037] See Figures 1-6 As shown, the dosing tube 7 includes a top ball 71, a funnel 72 and a pressure pump 73. The top ball 71 is located at one end of the dosing tube 7 and is in the main tube 1. The pressure pump 73 is located at the other end of the dosing tube 7 and the funnel 72 is located above the pressure pump 73.

[0038] The top ball 71 is used to prevent the desalinated seawater in the main pipe 1 from flowing back into the dosing pipe 7. The funnel 72 facilitates the addition of chemical agents. The pressurized pump 73 pressurizes the solution and sends it into the main pipe 1 to improve the reaction rate between the solution and the desalinated seawater.

[0039] See Figure 6 As shown, the mounting bracket 712 is installed in the dosing tube 7, and one end of the spring 711 is connected to the mounting bracket 712, while the other end is connected to the top ball 71.

[0040] Mounting bracket 712 is used to mount top ball 71. When the pressure increased by pressurizing pump 73 is greater than the elastic force of spring 711, top ball 71 leaves the inlet of dosing pipe 7, and the medicine enters the main pipe 1 normally. When the pressure increased by pressurizing pump 73 is less than the elastic force of spring 711, spring 711 pulls top ball 71 to reset and close dosing pipe 7 to save the use of chemical agents and avoid waste.

[0041] The above embodiments only illustrate one or more implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A filter pipe for seawater desalination, comprising a main pipe (1) for flowing desalinated seawater, a branch pipe (2) for sampling and testing the yellow water value, and a dosing pipe (7) for removing yellow water. Its features are, The diversion tube (2) includes a sampling tube (3) for uniformly sampling desalinated seawater, a filter box (4) for filtering sand and gravel impurities, a detection tube (5) for measuring pH value, and a return tube (6) for returning the sample to the main pipe (1). The desalinated seawater in the main pipe (1) flows in one direction. The dosing tube (7) is inserted into the main pipe (1) from the top and is located on the side of the inlet end of the main pipe (1). The diversion tube (2) is inserted into the main pipe (1) from the side and is located on the side of the outlet end of the main pipe (1). One end of the sampling tube (3) is opposite to the flow direction of the desalinated seawater, and the other end is connected to the diversion tube (2). The top of the filter box (4) is connected to the diversion tube (2). The bottom of the filter box (4) is connected to one end of the detection tube (5). The return tube (6) is connected to the other end of the detection tube (5) and inserted into the main pipe (1).

2. The seawater desalination filter pipe according to claim 1, characterized in that, The sampling tube (3) is equipped with a rotating joint (31), a connecting rod (32) and a ring frame (33). The rotating joint (31) is installed at the center of the ring frame (33), and the connecting rod (32) is installed on the side of the ring frame (33) and connected to the opening of the sampling tube (3).

3. A filter pipe for seawater desalination according to claim 2, characterized in that, A threaded rod (311) and a fan blade (312) are installed on the rotary joint (31). A positioning platform (313) is set at the center of the ring frame (33). The threaded rod (311) is installed on the positioning platform (313) and connected to the rotary joint (31). An array of fan blades (312) is set on the side of the rotary joint (31).

4. A filter pipe for seawater desalination according to claim 1, characterized in that, The filter box (4) is connected to the filter element (41) and the diverting pipe (42). One end of the diverting pipe (42) is connected to the bottom of the filter box (4), and the other end is connected to the detection pipe (5). The filter element (41) is installed inside the filter box (4).

5. A filter pipe for seawater desalination according to claim 1, characterized in that, The detection tube (5) is equipped with a disk (51), a probe (52), a data cable (53) and a detector (54). The disk (51) is installed inside the detection tube (5), the probe (52) is installed on the disk (51), one end of the data cable (53) is connected to the bottom of the detection tube (5), and the other end is connected to the detector (54).

6. A filter pipe for seawater desalination according to claim 5, characterized in that, The detector (54) is equipped with an alarm (541), a display (542) and an adjustment knob (543). The alarm (541) is located in the lower part of the detector (54), the display (542) is located in the upper part of the detector (54), and the adjustment knob (543) is located in the middle of the detector (54).

7. A filter pipe for seawater desalination according to claim 1, characterized in that, The dosing tube (7) includes a top ball (71), a funnel (72) and a pressure pump (73). The top ball (71) is located at one end of the dosing tube (7) and in the main tube (1). The pressure pump (73) is located at the other end of the dosing tube (7). The funnel (72) is located above the pressure pump (73).

8. A filter pipe for seawater desalination according to claim 7, characterized in that, The mounting bracket (712) is set in the dosing tube (7), and one end of the spring (711) is connected to the mounting bracket (712) and the other end is connected to the top ball (71).

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