A sampling device for a reverse osmosis system

Abstract

The utility model discloses a kind of reverse osmosis system sampling device, including sampling connector and sampling pipe, sampling connector sliding adjustable is installed on sampling pipe, the sampling pipe is used to extend into the support structure being installed in one end of reverse osmosis component, the support structure includes at least three elastic guides, elastic guide annularly is distributed on the outer wall of sampling pipe, elastic guide one end is connected with sampling pipe fixed, and the other end is suspended. By installing support structure in one end of sampling pipe, when sampling, support structure always supports sampling pipe, so that sampling pipe end is located in the center hole center position, and support structure can be elastically deformed, it is convenient to penetrate into butt joint step, improve sampling efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of water treatment equipment maintenance tools, and in particular to a sampling device for a reverse osmosis system. Background Technology

[0002] During long-term operation, reverse osmosis (RO) systems may experience membrane element blockage and internal leakage due to the hydraulic impact of high-pressure water flow and the influence of calcium and magnesium ions and microorganisms in the water. Internal components such as adapters and sealing rings within the membrane housing may also wear down, leading to abnormal desalination rates. Therefore, sampling is necessary for fault diagnosis. However, for RO systems with multiple membrane modules, convenient sampling devices are lacking, making it difficult to determine which module is damaged. Therefore, this application proposes a sampling device for a reverse osmosis system.

[0003] A search revealed Chinese patent document CN206020099U, published on March 15, 2017, which discloses a continuous sampling and testing device for permeate water of a reverse osmosis membrane module. The device includes a sampling connector and a sampling tube. One end of the sampling tube is inserted into the permeate water center hole of the reverse osmosis membrane module and can reciprocate. In use, the sampling connector is installed on the permeate water end cap, and then one end of the sampling tube is inserted into the center hole to correspond to one reverse osmosis membrane. Permeate water is sampled through the sampling tube, and a conductivity meter is used to test the sample. The sampling tube is moved to measure the permeate water conductivity of each reverse osmosis membrane sequentially. Finally, the change in conductivity data is used to determine which reverse osmosis membrane has a problem. Its advantages are: this paper can comprehensively and accurately test the performance of each reverse osmosis membrane without disassembling the reverse osmosis module, saving the time of disassembly and testing, and enabling timely detection and handling of faults; its disadvantages are: in actual use, because multiple membrane modules are installed inside the reverse osmosis module, the reverse osmosis module is relatively long, and the central holes between adjacent membrane modules have mating steps. When inserting the sampling tube, because the sampling tube is long, it cannot be accurately positioned in the center of the central hole, and the mating steps will interfere with the insertion of the sampling tube, affecting the sampling efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a sampling device for a reverse osmosis system. By installing a support structure at one end of the sampling tube, the support structure always supports the sampling tube during sampling, so that the end of the sampling tube is located at the center of the central hole. Furthermore, the support structure can elastically deform, making it easy to insert into the docking step, thereby improving sampling efficiency.

[0005] To achieve the above objectives, this utility model provides a sampling device for a reverse osmosis system, including a sampling connector and a sampling tube. The sampling connector is slidably and adjustablely mounted on the sampling tube. The sampling tube has a support structure installed at one end for extending into the reverse osmosis component. The support structure includes at least three elastic guide members, which are evenly distributed in a ring on the outer wall of the sampling tube. One end of the elastic guide member is connected and fixed to the sampling tube, while the other end is suspended.

[0006] The support structure also includes a sleeve, an elastic guide is fixed to the sleeve, and the sleeve is fitted and fixed to the sampling tube.

[0007] A limit ring is provided at one end of the sleeve.

[0008] The elastic guide has an arc-shaped structure.

[0009] The sampling connector includes a wire connector, a nut cap, a clamping ring, and a sealing ring. One end of the wire connector is used to connect to the reverse osmosis component, and the other end is fitted with a nut cap. The inner wall of the wire connector located at the nut cap end has an installation groove. The sealing ring and the clamping ring are installed sequentially from the inside to the outside of the installation groove. The sampling tube passes through the wire connector, the nut cap, the clamping ring, and the sealing ring.

[0010] The sampling tube is equipped with a mark to indicate the insertion depth.

[0011] The sampling tube is a metal tube.

[0012] A valve is installed at the other end of the sampling tube.

[0013] The valve's outlet end is connected to a flexible hose.

[0014] Compared with the prior art, this utility model has the following technical effects:

[0015] 1. This utility model improves sampling efficiency by installing a support structure at the end of the sampling tube. During sampling, the support structure always supports the sampling tube, so that the end of the sampling tube is located at the center of the central hole. In addition, the support structure can deform elastically, which facilitates the insertion of the docking step.

[0016] 2. The sampling connector used in this utility model allows for easy adjustment of the insertion length by loosening the nut cap when the sampling tube needs to be extended. This removes the pressure between the sealing ring and the sampling tube, allowing the tube to be pulled out and the insertion length adjusted. Once the insertion length is adjusted, the nut cap is tightened. During this process, the clamping ring compresses the sealing ring, causing radial deformation. The sealing ring then compresses the sampling tube, thus fixing and sealing it, resulting in improved reliability. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a three-dimensional structural diagram of the support structure of this utility model.

[0020] Figure 3 This is a cross-sectional structural diagram of the support structure of this utility model.

[0021] Figure 4 This is a cross-sectional structural diagram of the sampling connector of this utility model.

[0022] Figure 5 This is a schematic diagram illustrating the use of this utility model.

[0023] Figure label:

[0024] Sampling connector 10, threaded connector 11, nut cap 12, clamping ring 13, sealing ring 14;

[0025] Sampling tube 20, marked 21;

[0026] Support structure 30, sleeve 31, elastic guide 32, limiting ring 33;

[0027] Valve 40, hose 50, measuring cup 60, detector 70, reverse osmosis module 80, plug 81, center hole 82. Detailed Implementation

[0028] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0029] Example 1:

[0030] See Figure 1-5A sampling device for a reverse osmosis system includes a sampling connector 10 and a sampling tube 20. The sampling connector 10 is slidably and adjustablely mounted on the sampling tube 20. A support structure 30 is installed at one end of the sampling tube 20, which extends into a reverse osmosis assembly 80. The support structure 30 includes at least three elastic guide members 32, which are evenly distributed in a ring on the outer wall of the sampling tube 20. One end of each elastic guide member 32 is fixedly connected to the sampling tube 20, while the other end is suspended. By installing the support structure 30 at the end of the sampling tube 20, the support structure 30 always supports the sampling tube 20 during sampling, ensuring that the end of the sampling tube 30 is located at the center of the central hole 82. Furthermore, the support structure 30 can elastically deform, facilitating insertion into the docking step and improving sampling efficiency.

[0031] In this embodiment, the sampling tube 20 can be a rigid plastic tube, and the elastic guide 32 is an elastic plastic part. The elastic guide 32 is connected to the sampling tube 20 by heat fusion. If the sampling tube 20 is a metal tube, the metal elastic guide 32 can be fixed to the sampling tube 20 by welding.

[0032] Furthermore, the support structure 30 also includes a sleeve 31, with an elastic guide 32 fixedly connected to the sleeve 31, and the sleeve 31 being fitted and fixed to the sampling tube 20.

[0033] Specifically, the sampling tube 20 is made of metal, while the sleeve 31 and the elastic guide 32 are integrally molded plastic parts.

[0034] Furthermore, a limiting ring 33 is provided at one end of the sleeve 31 to limit the sleeve 31 and position the sleeve 31 at the end of the sampling tube 20.

[0035] In this embodiment, the sleeve 31 is fixed to the sampling tube 20 by an interference fit.

[0036] See Figure 2 , 3 The elastic guide 32 has an arc-shaped structure, which can play a guiding role when the sampling tube 20 moves back and forth.

[0037] In addition to an arc-shaped structure, the elastic guide 32 can also adopt other structures, such as a flat section in the middle and an inclined section at both ends.

[0038] Example 2:

[0039] Based on Example 1, see Figure 4The sampling connector 10 includes a wire connector 11, a nut cap 12, a clamping ring 13, and a sealing ring 14. One end of the wire connector 11 is used to connect to the reverse osmosis module 80, and the other end is fitted with the nut cap 12. An installation groove 111 is provided on the inner wall of the end of the wire connector 11 located at the nut cap 12. The sealing ring 14 and the clamping ring 13 are installed sequentially from the inside to the outside of the installation groove 111. The sampling tube 20 passes through the wire connector 11, the nut cap 12, the clamping ring 13, and the sealing ring 14. This structure secures and seals the sampling connector 10 and the sampling tube 20. Because the reverse osmosis module 80 operates under high internal pressure, this structure offers good reliability and reduces the risk of leakage.

[0040] When the sampling tube 20 needs to be extended or retracted, loosen the nut cap 12. At this time, the pressure between the sealing ring 14 and the sampling tube 20 disappears, and the sampling tube 20 can be pulled out to adjust the extension length. After the extension length of the sampling tube 20 is adjusted, tighten the nut cap 12. During this process, the clamping ring 13 squeezes the sealing ring 14, causing the sealing ring 14 to undergo radial deformation. The sealing ring 14 squeezes the sampling tube 20, thereby fixing and sealing the sampling tube 20.

[0041] To facilitate observation of the insertion depth of the sampling tube 20, a mark 21 for indicating the insertion depth is provided on the sampling tube 20. The mark 21 includes scales or rings of different colors.

[0042] To facilitate sampling, a valve 40 is installed at the other end of the sampling tube 20.

[0043] Furthermore, valve 40 is connected to hose 50 via quick-connect fitting, facilitating the introduction of water sample into measuring cup 60.

[0044] The working principle of this utility model:

[0045] During sampling, after the reverse osmosis system is shut down, remove the plug on the center hole 82 of the end cap of the reverse osmosis module 80 to be sampled and tested. Insert the end of the sampling tube 20 with the support structure 30 installed into the center hole 82, and then screw the sampling connector 10 into the center hole 82 to fix it. The valve 40 is in the closed state. Insert the sampling tube 20 into the appropriate position according to the measurement requirements, and tighten the nut cap 12.

[0046] Turn on the reverse osmosis system, open valve 40, and water will flow out of sampling tube 20. After rinsing with water for a period of time, collect the water sample with a clean measuring cup 60 and test the water quality with a detector 70.

[0047] Adjust the insertion length of the sampling tube 20 and measure the permeate data at various points inside the reverse osmosis module 80.

[0048] After sampling is completed, shut down the reverse osmosis system, disassemble the device, and restore the plug on the central hole 82.

Claims

1. A sampling device for a reverse osmosis system, comprising a sampling connector (10) and a sampling tube (20), wherein the sampling connector (10) is slidably and adjustablely mounted on the sampling tube (20), characterized in that: The sampling tube (20) is used to insert into the reverse osmosis component (80) and a support structure (30) is installed at one end. The support structure (30) includes at least three elastic guides (32). The elastic guides (32) are evenly distributed in a ring on the outer wall of the sampling tube (20). One end of the elastic guide (32) is connected and fixed to the sampling tube (20), and the other end is suspended.

2. The reverse osmosis system sampling device according to claim 1, characterized in that: The support structure (30) also includes a sleeve (31), an elastic guide (32) is fixed to the sleeve (31), and the sleeve (31) is fitted and fixed to the sampling tube (20).

3. A reverse osmosis system sampling device according to claim 2, characterized in that: A limit ring (33) is provided at one end of the sleeve (31).

4. A reverse osmosis system sampling device according to any one of claims 1-3, characterized in that: The elastic guide (32) has an arc-shaped structure.

5. A reverse osmosis system sampling device according to claim 1, characterized in that: The sampling connector (10) includes a wire connector (11), a nut cap (12), a clamping ring (13), and a sealing ring (14). One end of the wire connector (11) is used to connect to the reverse osmosis component (80), and the other end is equipped with a nut cap (12). The inner wall of the wire connector (11) located at one end of the nut cap (12) is provided with an installation groove (111). The sealing ring (14) and the clamping ring (13) are installed in the installation groove (111) from the inside to the outside. The sampling tube (20) passes through the wire connector (11), the nut cap (12), the clamping ring (13), and the sealing ring (14).

6. A reverse osmosis system sampling device according to claim 1, characterized in that: The sampling tube (20) is provided with a mark (21) for indicating the insertion depth.

7. A reverse osmosis system sampling device according to claim 1, 5, or 6, characterized in that: The sampling tube (20) is a metal tube.

8. A reverse osmosis system sampling device according to claim 1, characterized in that: A valve (40) is installed at the other end of the sampling tube (20).

9. A reverse osmosis system sampling device according to claim 8, characterized in that: The outlet end of the valve (40) is connected to a flexible hose (50).

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