CN215375206U

CN215375206U - TOC detection device for preparing ultrapure water

Info

Publication number: CN215375206U
Application number: CN202120564073.9U
Authority: CN
Inventors: 苏庭科
Original assignee: Sichuan Yiyang Chemical&environmental Engineering Co ltd
Current assignee: Sichuan Yiyang Chemical&environmental Engineering Co ltd
Priority date: 2021-03-18
Filing date: 2021-03-18
Publication date: 2021-12-31
Anticipated expiration: 2031-03-18

Abstract

The utility model relates to the technical field of water treatment equipment, and provides a TOC detection device for preparing ultrapure water, which comprises a main pipe and a first auxiliary pipe, wherein the first auxiliary pipe is arranged in parallel with the main pipe, two ends of the first auxiliary pipe are communicated with the main pipe, the middle part of the first auxiliary pipe is also provided with a TOC detection pipe, two ends of the TOC detection pipe are detachably connected to the first auxiliary pipe and are communicated with the first auxiliary pipe, two ends of the first auxiliary pipe are provided with valves, a light source, a temperature sensor and an electric conductivity sensor are arranged in the TOC detection pipe, and the electric conductivity sensor and the temperature sensor are electrically connected with a control module.

Description

TOC detection device for preparing ultrapure water

Technical Field

The utility model relates to the technical field of water treatment equipment, in particular to a TOC detection device for preparing ultrapure water.

Background

The total organic carbon content (TOC) in ultrapure water has a great influence on experiments, such as environmental protection, pharmaceutical and biochemical pharmaceutical industries, semiconductor industries, and the like. The requirements for the content of organic carbon are different in different industries, so that the organic carbon measuring work is very important. As the sensitivity of the existing analytical instruments and experimental methods is continuously improved, organic pollutants in ultrapure water become the most concerned problem in laboratories, and the problems of poor reproducibility, polluted medium active surface, disturbed product chemistry and the like are caused by overhigh organic pollutants in water. At present, a combination of water purification techniques (such as activated carbon adsorption, ultraviolet oxidation, and ion exchange) is often used in ultrapure water devices to reduce organic substances in water. However, how to accurately monitor the purity of the organic matter in water is still an extremely important problem, and many off-line organic analysis methods have poor detection effect due to low detection sensitivity, long time consumption and easy pollution of samples, and cannot accurately, quickly and highly sensitively detect the dissolved organic matter in water.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a TOC detection device for preparing ultrapure water, which is provided with a main pipe to circulate the ultrapure water, and a first auxiliary pipe is matched with a TOC detection pipe to detect the content of organic carbon in the ultrapure water, so that the TOC detection of the ultrapure water in transportation can be quickly and effectively carried out.

The embodiment of the utility model is realized by the following technical scheme: the utility model provides a TOC detection device of ultrapure water of preparation, is including being responsible for and first auxiliary pipe, first auxiliary pipe and the both ends of being responsible for parallel arrangement and first auxiliary pipe with be responsible for the intercommunication, first auxiliary pipe middle part still is equipped with the TOC test tube, the both ends of TOC test tube can be dismantled and connect at first auxiliary pipe and with first auxiliary pipe through connection, the both ends of first auxiliary pipe are equipped with the valve, be equipped with light source, temperature sensor, electric conductivity sensor in the TOC test tube, electric conductivity sensor and temperature sensor electric connection control module.

Furthermore, a heating pipe is also arranged in the TOC detection pipe.

Furthermore, a titanium electrode tube is arranged in the TOC detection tube.

Further, still be equipped with the secondary pipe of second, the secondary pipe of second and be responsible for parallel arrangement and the both ends of secondary pipe of second and be responsible for the intercommunication, the both ends of secondary pipe of second are equipped with valve and ring flange, and the middle part of secondary pipe of second is connected with the sampling tube through the ring flange, and the sampling tube communicates with the secondary pipe of second, is equipped with the sampling box in the sampling tube.

Further, the sampling box comprises a fixing device and a containing groove, and the fixing device is arranged around the containing groove.

Further, fixing device is including setting up the positioning groove in the sampling tube and setting up the location arch on the sampling box, and positioning groove and location arch cooperation set up.

Further, the fixing device comprises a magnetic adsorption piece arranged on the sampling tube and a magnetic adsorption piece arranged on the sampling box.

Furthermore, still be equipped with turbine fan blade, turbine fan blade sets up and just keeps away from TOC test tube setting at the end of intaking of being responsible for.

The technical scheme of the embodiment of the utility model at least has the following advantages and beneficial effects: it makes the ultrapure water circulation through setting up the person in charge, detects the organic carbon content in the ultrapure water through first accessory pipe cooperation TOC detection tube, and the TOC detection is carried out to the ultrapure water of transporting that can be effectual fast.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a first schematic structural diagram of a TOC detection apparatus for preparing ultrapure water according to the present invention;

FIG. 2 is a schematic structural diagram II of a TOC detection apparatus for preparing ultrapure water according to the present invention;

FIG. 3 is a third schematic structural diagram of a TOC detection apparatus for preparing ultrapure water according to the present invention;

icon: 10-main pipe, 20-first auxiliary pipe, 21-valve, 30-TOC detection pipe, 31-light source, 32-temperature sensor, 33-conductivity sensor, 34-heating pipe, 35-titanium electrode pipe, 40-second auxiliary pipe, 50-sampling pipe, 51-sampling box and 60-turbine fan blade.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually placed when the products of the present invention are used, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the device or element which is referred to must have a specific orientation, be constructed in a specific orientation and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Examples

A TOC detection device for preparing ultrapure water comprises a main pipe 10 and a first auxiliary pipe 20, wherein the first auxiliary pipe 20 is arranged in parallel with the main pipe 10, two ends of the first auxiliary pipe 20 are communicated with the main pipe 10, the ultrapure water in the main pipe 10 can be directly conveyed into the first auxiliary pipe 20 for detection by a TOC detection pipe 30 in a parallel arrangement mode, and the connection joint of the main pipe 10 and the first auxiliary pipe 20 is in transition by adopting a bent pipe so as to avoid the accumulation of the ultrapure water; the TOC detection pipe 30 is further disposed in the middle of the first sub-pipe 20, two ends of the TOC detection pipe 30 are detachably connected to the first sub-pipe 20 and are in through connection with the first sub-pipe 20, it should be noted here that as shown in fig. 1, the TOC detection pipe 30, the first sub-pipe 20 and the main pipe 10 form a communication loop, the first sub-pipe 20 is used for dividing ultrapure water in the main pipe 10 into the TOC detection pipe 30, further, two ends of the first sub-pipe 20 are provided with valves 21, and the water flow condition in the TOC detection pipe 30 is controlled by the valves 21, so as to realize the functions of static detection and dynamic collection.

Specifically, a light source 31, a temperature sensor 32 and a conductivity sensor 33 are arranged in the TOC detection tube 30, the conductivity sensor 33 and the temperature sensor 32 are electrically connected to the control module, and here, the light source 31 is an ultraviolet light source 31. The temperature sensor 32 is used for recording and detecting the temperature of the ultrapure water as a basis for temperature compensation, the conductivity sensor 33 is used for detecting the conductivity (resistivity) of the ultrapure water to sequentially detect the TOC value of the ultrapure water, and the specific operation process is as follows: ultrapure water is conveyed through the main pipe 10, the TOC detection pipe 30 is installed on the first auxiliary pipe 20, two valves 21 on the first auxiliary pipe 20 are opened, the ultrapure water is conveyed into the TOC detection pipe 30 through the first auxiliary pipe 20, the valves 21 on the first auxiliary pipe 20 are closed, TOC detection is carried out, the ultrapure water irradiated by ultraviolet rays is opened to be oxidized, the numerical value of the conductivity of the ultrapure water before and after detection is carried out through the conductivity sensor 33, and the difference value is calculated, so that the TOC value is obtained; after the detection is finished, the TOC detection tube 30 can be detached or the valve 21 can be directly opened, the ultrapure water in the TOC detection tube 30 is replaced, and the next detection is carried out.

In some embodiments, a heating tube 34 is also disposed within the TOC sensing tube 30 to provide temperature regulation within the TOC sensing tube 30 based on temperature compensation.

In some embodiments, the TOC detecting tube 30 is further provided with a titanium electrode tube 35, and it should be noted that, in this case, the light source 31 adopts a 185nmUV lamp, the conductivity and temperature are measured by the conductivity sensor 33 and the temperature sensor 32, the conductivity value at 25 ℃ is calculated, the energy released by the 185nmUV lamp reacts with the titanium electrode photochemically to generate (OH) radicals, which are highly efficient oxidants, organic matters in the water sample are oxidized into CO2, dissolved in water to form carbonic acid, and then decomposed into H and HCO3 ions, so that the ions increase the conductivity value of the water, the microprocessor continuously monitors the conductivity change of the water until the oxidation is completed, and the difference between the initial conductivity and the end conductivity is used for determining the TOC value of the water sample; the procedure of operation is of course identical to that described above.

In some embodiments, there is further provided a second auxiliary pipe 40, the second auxiliary pipe 40 is disposed in parallel with the main pipe 10 and both ends of the second auxiliary pipe 40 are communicated with the main pipe 10, both ends of the second auxiliary pipe 40 are provided with a valve 21 and a flange, a middle portion of the second auxiliary pipe 40 is connected with a sampling pipe 50 through a flange, the sampling pipe 50 is communicated with the second auxiliary pipe 40, a sampling box 51 is disposed in the sampling pipe 50, wherein the second auxiliary pipe 40 is disposed for providing a comparison reference, when detecting ultrapure water in the first auxiliary pipe 20, the sampling box 51 in the second auxiliary pipe 40 can simultaneously collect ultrapure water in the same time period as a sample to be stored for subsequent use, it should be noted that, here, the second auxiliary pipe 40 and the first auxiliary pipe 20 are used in the same manner, even, the TOC detecting pipe 30 can also be disposed on the second auxiliary pipe 40, two TOC detecting pipes 30 are disposed for combined detection, and comparing the detection parameters to obtain more definite and accurate parameters.

Specifically, as shown in fig. 3, in order to ensure that the sampling box 51 is not covered by the impact of the ultrapure water, and the ultrapure water cannot be collected, in some embodiments, the sampling box 51 includes a fixing device and a receiving groove, and the fixing device is disposed around the receiving groove; the fixing device comprises a positioning groove arranged in the sampling tube 50 and a positioning bulge arranged on the sampling box 51, the positioning groove and the positioning bulge are arranged in a matching way, and the sampling box 51 is completely fixed in the sampling tube 50 by arranging the positioning groove and the second bulge and simultaneously matching with water pressure; alternatively, in some embodiments, the fixing means includes a magnetic adsorption member provided on the sampling tube 50 and a magnetic adsorption member provided on the sampling box 51, and the sampling box 51 is fixed by means of magnetic adsorption.

In some embodiments, a turbine blade 60 is further provided, the turbine blade 60 is disposed at the water inlet end of the main pipe 10 and is far away from the TOC detection pipe 30, and the turbine blade 60 is disposed herein for the purpose of depositing substances in the ultrapure water when the water flow rate in the main pipe 10 is small, which may cause maldistribution, so that the TOC value of the ultrapure water detected from one side may not be accurate, and the turbine blade 60 is disposed for fully mixing the unevenly distributed ultrapure water before entering the first secondary pipe 20, thereby improving the detection accuracy. It should be noted that if a combined detection mode of the first auxiliary pipe 20 and the second auxiliary pipe 40 is adopted, the detected TOC value can be corrected by comparing two detection parameters, so as to obtain more accurate data, which is also a method for solving the problem, of course, if so arranged, the first auxiliary pipe 20 and the second auxiliary pipe 40 should be arranged in an axisymmetric manner, and a third auxiliary pipe and a fourth auxiliary pipe may be arranged according to actual requirements.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A TOC detection device for preparing ultrapure water is characterized in that: including being responsible for and first auxiliary pipe, first auxiliary pipe and the both ends of being responsible for parallel arrangement and first auxiliary pipe and being responsible for the intercommunication, first auxiliary pipe middle part still is equipped with the TOC test tube, the connection can be dismantled at the both ends of TOC test tube first auxiliary pipe and with first auxiliary pipe through connection, the both ends of first auxiliary pipe are equipped with the valve, be equipped with light source, temperature sensor, electric conductivity sensor in the TOC test tube, electric conductivity sensor and temperature sensor electricity connection control module.

2. The TOC detecting apparatus for ultrapure water production according to claim 1, wherein: and a heating pipe is also arranged in the TOC detection pipe.

3. The TOC detecting apparatus for ultrapure water production according to claim 2, wherein: and a titanium electrode tube is also arranged in the TOC detection tube.

4. The TOC detecting apparatus for ultrapure water production according to any one of claims 1 to 3 wherein: still be equipped with the secondary pipe of second, the secondary pipe of second and the both ends of being responsible for parallel arrangement and the secondary pipe of second communicate with being responsible for, the both ends of secondary pipe of second are equipped with valve and ring flange, the middle part of secondary pipe of second is connected with the sampling tube through the ring flange, the sampling tube with the secondary pipe intercommunication of second, be equipped with the sampling box in the sampling tube.

5. The TOC detecting apparatus for ultrapure water production according to claim 4, wherein: the sampling box comprises a fixing device and a containing groove, and the fixing device is arranged around the containing groove.

6. The TOC detecting apparatus for ultrapure water production according to claim 5, wherein: the fixing device comprises a positioning groove arranged in the sampling pipe and a positioning bulge arranged on the sampling box, and the positioning groove and the positioning bulge are matched.

7. The TOC detecting apparatus for ultrapure water production according to claim 5, wherein: the fixing device comprises a magnetic adsorption piece arranged on the sampling tube and a magnetic adsorption piece arranged on the sampling box.

8. The TOC detecting apparatus for ultrapure water production according to any one of claims 1 to 3 wherein: still be equipped with turbine fan blade, turbine fan blade sets up the end of intaking of being responsible for just keeps away from TOC detects the pipe setting.