Liquid sampling device of online analysis instrument

Abstract

The utility model discloses a liquid sampling device of an on-line analysis instrument, which is arranged on an ion exchanger in a matching way and comprises a sampling pipe system and the on-line analysis instrument, the sampling pipe system comprises a sampling guide pipe and a plurality of sampling probes, the sampling guide pipe is horizontally arranged on the ion exchanger body in a penetrating mode, the sampling end of the sampling guide pipe is communicated with the sampling probes, and the sampling probes are annularly and horizontally arranged around the sampling end of the sampling guide pipe at intervals; and the tail end of the sampling conduit is connected with a water inlet interface of the on-line analysis instrument positioned outside the ion exchanger. The sampling point is far away from the water producing tank or the water using point, and after sampling analysis, alarming and control are performed, so that enough reaction time is provided, unqualified product water can be prevented from entering the ion exchange water producing tank to influence the water quality of produced water, and the produced water is ensured to continuously reach the standard.

Description

Technical Field

[0001] This utility model relates to the field of water treatment technology, specifically to an online analytical instrument liquid sampling device. Background Technology

[0002] In water treatment engineering, an online analyzer is an instrument that automatically measures the chemical composition or some corresponding physical properties or quantities of the analyte without operator intervention. In process operation, this result can be used for indication, recording, alarm or control.

[0003] A sampling system is a combination of components or devices that allows for the extraction of sufficiently representative samples from a process. The processed samples are fed directly into an online analyzer and then discharged. Sampling systems typically also include interfaces for introducing standard samples to calibrate and validate the analyzer. A sampling system may consist of one or more sampling points and probes, conduits or delivery lines, pressure reducing or regulating valves, filters, valves, or other components.

[0004] Traditional online ion exchanger effluent analyzers typically use sampling points located on the ion exchanger's effluent pipeline. These sampling points usually consist of a single sampling point and conduits or transfer lines, valves, or other components. However, this method results in sampling points that are too close to the product water tank or point of use. The delay between sampling and analysis and the subsequent alarm and control response can lead to substandard product water entering the ion exchange product water tank, affecting the quality of the product water and potentially causing it to exceed standards. Furthermore, these traditional online ion exchanger effluent analyzers often lack adequate water sample treatment equipment, allowing small amounts of resin powder and other suspended solids to enter the online analyzer, clogging the sampling and analysis system, damaging the analyzer, and causing economic losses. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an online analytical instrument liquid sampling device.

[0006] This utility model discloses an online analytical instrument liquid sampling device, which is installed in conjunction with an ion exchanger. The online analytical instrument liquid sampling device includes a sampling tubing system and an online analytical instrument.

[0007] The sampling system includes a sampling conduit and multiple sampling probes. The sampling conduit is horizontally inserted into the ion exchanger body. The sampling end of the sampling conduit is connected to the multiple sampling probes. The multiple sampling probes are arranged horizontally in a ring around the sampling end of the sampling conduit. The sampling points of the multiple sampling probes are located in the resin layer filled inside the ion exchanger near the outlet. The end of the sampling conduit is connected to the inlet of the online analysis instrument located outside the ion exchanger.

[0008] As a further improvement of this utility model, the ion exchanger body is provided with a horizontally arranged inlet water distribution device, a middle outlet water distribution device, a drain cap water distribution device and a water distribution device with a baffle plate, arranged from top to bottom. An ion exchange resin layer is provided between the middle outlet water distribution device and the perforated plate drain cap water distribution device. The sampling tube system is horizontally arranged between the middle outlet water distribution device and the perforated plate drain cap water distribution device.

[0009] As a further improvement of this utility model, the sampling conduit is connected to multiple sampling probes via a flange, the sampling conduit and all the sampling probes are in the same plane, the sampling end of the sampling conduit is located at the center of the ion exchanger body, and the multiple sampling probes are arranged in a ring at uniform intervals around the sampling end; further, it is preferred that the number of sampling probes is 3 sets.

[0010] As a further improvement of this utility model, the distance between the end of the sampling probe and the inner wall of the ion exchanger is reserved to be more than 100mm to facilitate installation and maintenance.

[0011] As a further improvement of this utility model, the sampling catheter is supported and fixed by a sampling catheter support within the ion exchanger body.

[0012] As a further improvement of this utility model, the sampling conduit is fixed to the sampling conduit support using stainless steel or duplex steel pipe clamps and stainless steel or duplex steel bolts; the sampling conduit support is made of carbon steel lined with rubber, and is welded and fixed to the upper part of the perforated plate inside the ion exchanger body. The distance between the sampling conduit and the lower perforated plate meets the maintenance space requirements of the sampling conduit flange and the perforated plate water cap, which facilitates maintenance.

[0013] As a further improvement of this utility model, the sampling probe is made of stainless steel or duplex steel, and the structure of the sampling probe adopts a trapezoidal wire winding structure with a wire winding gap of <0.2mm; so that it can perform both sampling and filtration functions, filter and retain suspended solids such as resin powder, collect ion exchange product water, and transport it to an online analysis instrument outside the ion exchanger.

[0014] As a further improvement of this utility model, the sampling conduit and the sampling interface on the side wall of the ion exchanger body are connected by a stainless steel flange, and the construction of the sampling interface on the side wall of the ion exchanger equipment is consistent with other pipe interfaces.

[0015] As a further improvement of this utility model, a pneumatic diaphragm valve, a Y-type filter, a manual shut-off valve, and a conversion connector are sequentially installed on the sampling conduit section located outside the ion exchanger body. The conversion connector is connected to one end of the sampling hose, and the other end of the sampling hose is connected to the water inlet of the online analysis instrument.

[0016] As a further improvement of this utility model, the drain outlet of the online analytical instrument is connected to a drainage ditch via a drain hose.

[0017] As a further improvement of this utility model, the pneumatic diaphragm valve is made of carbon steel lined with rubber and connected by a flange; the Y-type filter, as a second-stage filtration device, is made of stainless steel or duplex steel, with a filter screen filtration accuracy of 0.075mm selectable and connected by a flange; the manual shut-off valve is made of stainless steel or duplex steel and connected by a flange; the conversion joint is made of stainless steel or duplex steel and connected by a thread or snap-fit.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] This utility model discloses an online analytical instrument liquid sampling device. The sampling point is located inside the ion exchanger, in the resin layer near the outlet. The sampling device consists of multiple sampling points and probes, conduits or transmission lines, pressure reducing or regulating devices, filters, valves, or other components. The sampling points are far away from the product water tank or water usage point. After sampling and analysis, there is sufficient reaction time before alarm and control are activated. This can prevent unqualified product water from entering the ion exchange product water tank and affecting the product water quality, ensuring that the product water continuously meets the standards.

[0020] The liquid sampling device for online analytical instruments of this invention is equipped with a two-stage filtration system, which can intercept resin powder from entering the online analytical instrument, prevent resin powder and other suspended matter from clogging the instrument's sampling and analysis system, fully protect the analytical instrument, and avoid economic losses.

[0021] The liquid sampling device for online analytical instruments of this invention is easy to install, can operate stably for a long time, and can reduce the risk of damage to online analytical instruments and reduce the failure rate of online analytical instruments.

[0022] The online analytical instrument liquid sampling device of this utility model is equipped with a pneumatic diaphragm valve, a Y-type filter, and a manual shut-off valve on the external sampling conduit of the ion exchanger, which facilitates the maintenance of equipment such as the Y-type filter and valves. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the installation of the online analytical instrument liquid sampling device disclosed in this utility model;

[0024] Figure 2 This is a top view of the ion exchanger disclosed in this utility model;

[0025] Figure 3 This is a top view of the online analytical instrument liquid sampling device disclosed in this utility model. In the figure:

[0026] 1. Ion exchanger body; 2. Inlet water distribution device; 3. Middle drain water distribution device; 4. Drain cap water distribution device; 5. Sampling probe; 6. Flange; 7. Sampling conduit support; 8. Sampling conduit; 9. Pneumatic diaphragm valve; 10. Y-type filter; 11. Manual shut-off valve; 12. Adapter; 13. Sampling hose; 14. Online analysis instrument; 15. Drain hose; 16. Drainage ditch; 17. Inlet water piping system; 18. Ion exchange resin layer; 19. Outlet water piping system; 20. Exhaust pipe system. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0028] The present invention will now be described in further detail with reference to the accompanying drawings:

[0029] like Figures 1-3 As shown, this utility model provides an online analytical instrument liquid sampling device, which is installed on an ion exchanger. The ion exchanger body is a vertical cylindrical carbon steel rubber-lined device with water inlet at the top and water outlet at the bottom. The external components of the ion exchanger body 1 include an inlet water pipe system 17, an outlet water pipe system 19, a regenerated liquid inlet water pipe system, a middle drain pipe system, a backwash inlet water pipe system, a backwash drain pipe system, and an exhaust pipe system 20. Inside the ion exchanger body 1, a branch pipe-type inlet water distribution device 2 is installed at the top, a fishbone-type middle drain water distribution device 3 is installed in the middle, a perforated plate drain cap water distribution device 4 is installed at the bottom, and a baffle plate water distribution device is installed at the bottom. An ion exchange resin layer 18 is provided between the middle drain water distribution device 3 and the drain cap water distribution device 4. Sufficient manholes are provided on the bottom and sides of the ion exchanger body 1 for easy maintenance.

[0030] The online analytical instrument liquid sampling device of this utility model includes a sampling tubing system and an online analytical instrument 14; the sampling tubing system includes a sampling conduit 8 and multiple sampling probes 5. The sampling conduit is horizontally inserted on the ion exchanger body 1. The sampling end of the sampling conduit 8 is connected to the multiple sampling probes 5. The sampling points of the multiple sampling probes 8 are located in the ion exchange resin layer 18 filled inside the ion exchanger near the water outlet.

[0031] Specifically:

[0032] This utility model's sampling conduit 8 has an inner section and an outer section. The inner section of the sampling conduit 8 is horizontally supported and fixed by a sampling conduit bracket 7. Furthermore, the sampling conduit is fixed to the sampling conduit bracket using stainless steel or duplex steel pipe clamps and stainless steel or duplex steel bolts. The sampling conduit bracket is made of carbon steel lined with rubber and is welded and fixed above the lower perforated plate inside the ion exchanger body. The distance between the sampling conduit and the lower perforated plate meets the maintenance space requirements for the sampling conduit flange and the perforated plate water cap, facilitating maintenance. Furthermore, the sampling interface between the sampling conduit and the side wall of the ion exchanger body is connected using a stainless steel flange, and the construction of the ion exchanger equipment side wall sampling interface is consistent with other pipe interfaces.

[0033] The sampling end of the sampling conduit 8 of this invention is located at the center of the ion exchanger body 1. It has multiple sampling ports, which are connected to corresponding sampling probes 5 via flanges 6. The sampling conduit 8 and all the sampling probes 5 are in the same plane, and the multiple sampling probes 5 are evenly spaced in a ring around the sampling end. Preferably, the number of sampling probes is three sets. Figure 3 As shown. Furthermore, a distance of at least 100mm is reserved between the end of the sampling probe and the inner wall of the ion exchanger to facilitate installation and maintenance. Furthermore, the sampling probe 5 is made of stainless steel or duplex steel, and its structure adopts a trapezoidal wire-wound structure with a wire gap of <0.2mm; this allows it to perform both sampling and filtration functions, filtering and retaining suspended solids such as resin powder, collecting ion exchange permeate, and transporting it to an online analysis instrument outside the ion exchanger.

[0034] The end of the sampling conduit 8 of this invention is connected to the water inlet of the online analysis instrument 14 located outside the ion exchanger.

[0035] Specifically:

[0036] The sampling conduit 8 of this utility model is equipped with a pneumatic diaphragm valve 9, a Y-type filter 10, a manual shut-off valve 11, and a conversion connector 12 in sequence on its outer section. The conversion connector 12 is connected to one end of the sampling hose 13, and the other end of the sampling hose 13 is connected to the water inlet of the online analyzer 14. The drain outlet of the online analyzer 14 is connected to the drain ditch 16 through the drain hose 15.

[0037] Furthermore, the pneumatic diaphragm valve 9 of this utility model is made of carbon steel lined with rubber and connected by a flange; the Y-type filter 10, as a second-stage filtration device, is made of stainless steel or duplex steel, with a filter screen filtration accuracy of 0.075mm, and is connected by a flange; the manual shut-off valve 11 is made of stainless steel or duplex steel and is connected by a flange; the rigid pipe and flexible hose conversion joint 12 is made of stainless steel or duplex steel and is connected by a thread or snap-fit; the flexible hose connected after the rigid pipe and flexible hose conversion joint serves as a sampling conduit, and then extends to the water inlet interface of the online analysis instrument.

[0038] Furthermore, the online analytical instruments are positioned near the sampling port of the ion exchanger, minimizing the length of the sampling conduit. The online analytical instruments are fixed to the ground or a nearby wall using stainless steel brackets. The power distribution and control systems for the online analytical instruments are configured according to the instrument's requirements.

[0039] exist Figures 1-3 Table 1 shows the pipe specifications, flange standards, sealing surfaces, and names corresponding to each serial number.

[0040] Table 1

[0041] Serial Number Specification Flange Standard sealing surface name Remark a DN200 PN10 HG / T20592 B PL / RF Inlet b DN200 PN10 HG / T20592 B PL / RF water outlet c DN125 PN10 HG / T20592 B PL / RF Backwash inlet d DN125 PN10 HG / T20592 B PL / RF Backwash drain e DN100 PN10 HG / T20592 B PL / RF Inlet of regenerated liquid f DN150 PN10 HG / T20592 B PL / RF Forward wash drain g DN40 PN10 HG / T20592 B PL / RF exhaust port h DN100 PN10 HG / T20592 B PL / RF Middle drain i1，2 DN125 PN10 HG / T20592 B PL / RF Resin port Official flange k1，2，3 370X150 - - peephole m1，2 DN500 PN6 HG / T20592 B - Inspection port Manhole with vertical cover m3 DN500 PN6 HG / T20592 B - Inspection port Cover plate n DN25 PN10 HG / T20592 B PL / RF Analytical instrument sampling port

[0042] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An online analytical instrument liquid sampling device, wherein the online analytical instrument liquid sampling device is installed in conjunction with an ion exchanger, characterized in that, The online analytical instrument liquid sampling device includes a sampling tubing system and an online analytical instrument; The sampling system includes a sampling conduit and multiple sampling probes. The sampling conduit is horizontally inserted into the ion exchanger body. The sampling end of the sampling conduit is connected to the multiple sampling probes. The multiple sampling probes are arranged horizontally in a ring around the sampling end of the sampling conduit. The sampling points of the multiple sampling probes are located in the resin layer filled inside the ion exchanger near the outlet. The end of the sampling conduit is connected to the inlet of the online analysis instrument located outside the ion exchanger.

2. The online analytical instrument liquid sampling device as described in claim 1, characterized in that, The ion exchanger body is provided with a horizontally arranged inlet water distribution device, a middle outlet water distribution device, a drain cap water distribution device, and a water distribution device with a baffle plate, arranged from top to bottom. An ion exchange resin layer is provided between the middle outlet water distribution device and the perforated plate drain cap water distribution device. The sampling tube system is arranged horizontally between the middle outlet water distribution device and the perforated plate drain cap water distribution device.

3. The online analytical instrument liquid sampling device as described in claim 1 or 2, characterized in that, The sampling conduit is connected to multiple sampling probes via a flange. The sampling conduit and all the sampling probes are in the same plane. The sampling end of the sampling conduit is located at the center of the ion exchanger body. The multiple sampling probes are arranged in a ring at uniform intervals around the sampling end.

4. The online analytical instrument liquid sampling device as described in claim 3, characterized in that, The sampling probe is positioned at a distance of more than 100 mm from the inner wall of the ion exchanger.

5. The online analytical instrument liquid sampling device as described in claim 1, characterized in that, Within the ion exchanger body, the sampling catheter is supported and fixed by a sampling catheter support.

6. The online analytical instrument liquid sampling device as described in claim 5, characterized in that, The sampling conduit is fixed to the sampling conduit support using stainless steel or duplex steel pipe clamps and stainless steel or duplex steel bolts; the sampling conduit support is made of carbon steel lined with rubber and is welded and fixed to the lower perforated plate inside the ion exchanger body. The distance between the sampling conduit and the lower perforated plate meets the maintenance space requirements of the sampling conduit flange and the perforated plate water cap.

7. The online analytical instrument liquid sampling device as described in claim 1, characterized in that, The sampling probe is made of stainless steel or duplex steel, and its structure adopts a trapezoidal wire winding structure with a wire winding gap of <0.2mm.

8. The online analytical instrument liquid sampling device as described in claim 1, characterized in that, A pneumatic diaphragm valve, a Y-type filter, a manual shut-off valve, and a conversion connector are sequentially installed on the sampling conduit section located outside the ion exchanger body. The conversion connector is connected to one end of the sampling hose, and the other end of the sampling hose is connected to the water inlet of the online analyzer.

9. The online analytical instrument liquid sampling device as described in claim 1 or 8, characterized in that, The drain outlet of the online analytical instrument is connected to a drainage ditch via a drain hose.

10. The online analytical instrument liquid sampling device as described in claim 8, characterized in that, The pneumatic diaphragm valve is made of carbon steel lined with rubber and connected by flanges; the Y-type filter, as a second-stage filtration device, is made of stainless steel or duplex steel and connected by flanges; the manual shut-off valve is made of stainless steel or duplex steel and connected by flanges; the adapter is made of stainless steel or duplex steel and connected by threads or snap-fit.

Images