Preparation device of selenium-containing direct drinking water

Abstract

The utility model discloses a selenium-containing direct drinking water preparation device which comprises a raw water tank, a delivery pump, a gradient filter, a biological membrane elimination device, a heavy metal ion filter, a micron filter, a low-molecular organic matter removal device, a selenium water preparation device and a pure water tank, the raw water tank, the delivery pump, the gradient filter, the biological membrane eliminating device, the heavy metal ion filter, the micron filter, the low-molecular organic matter removing device, the selenium water preparation device and the pure water tank are sequentially connected end to end through pipelines. According to the utility model, all the parts are sequentially connected to form a complete process, direct drinking water which is treated by multiple processes, contains a proper amount of selenium and is reliable in quality can be provided for people, and people can be effectively helped to meet the requirement of supplementing the selenium through daily drinking water.

Description

TECHNICAL FIELD

[0001] The utility model relates to direct drinking water treatment technical field, concretely relates to a kind of preparation device of selenium-containing direct drinking water. BACKGROUND

[0002] Selenium is trace element that has been proved by medicine to be very beneficial to human health and longevity, and selenium has the effects of enhancing human immunity, promoting bone health and promoting metabolism. The existing technical approach for selenium supplementation is one that exists in the form of health products, such as selenium-rich kang, which can supplement selenium by directly drinking these selenium-containing health products. Another technical approach for selenium supplementation is to feed poultry (such as chickens) with selenium-containing feed, which provides people with selenium-rich eggs after being digested and absorbed by the chickens, or to apply selenium-containing fertilizer to fruit trees and tea trees to produce selenium-rich fruits and tea. Currently, whether it is selenium-containing feed or selenium-containing fertilizer, both are in the form of easily soluble sodium selenite, and do not have the characteristics of slow release. The form of selenium-rich health products for supplementing selenium is relatively direct, but the price is relatively high, while the selenium content of selenium-rich agricultural products is very limited, and due to the existence of secondary transformation, the conversion efficiency of selenium is low and uncontrollable. The natural way of selenium supplementation is to directly drink selenium-rich mineral water, and there are very few areas with natural selenium-rich soil and water bodies, which belong to extremely scarce natural resources. Therefore, how to increase the selenium element in daily drinking water has become a pressing problem to be solved. SUMMARY

[0003] The technical problem to be solved by the utility model is to overcome the shortcomings of the prior art, and to provide a selenium-containing direct drinking water preparation device that allows people to supplement selenium in daily drinking water.

[0004] To solve the above technical problems, the utility model adopts the technical scheme of providing a selenium-containing direct drinking water preparation device, which comprises a raw water tank, a delivery pump, a gradient filter, a biological membrane elimination device, a heavy metal ion filter, a micron filter, a low-molecular organic matter removal device, a selenium water configuration device, and a pure water tank. The raw water tank, the delivery pump, the gradient filter, the biological membrane elimination device, the heavy metal ion filter, the micron filter, the low-molecular organic matter removal device, the selenium water configuration device, and the pure water tank are sequentially connected end to end through pipelines.

[0005] Further, the selenium water configuration device comprises a three-way valve, a first pipeline, a second pipeline, a water-soluble selenium core, and a selenium water generation tank. The first end of the three-way valve is connected to the output end of the organic matter removal device, the second end and the third end are respectively connected to the input ends of the first pipeline and the second pipeline, the output ends of the first pipeline and the second pipeline are in communication with the selenium water generation tank, and the water-soluble selenium core is arranged on the first pipeline or the second pipeline.

[0006] Further, the selenium water generating box is provided with a mixing mechanism for mixing the selenium water mixed solution from the first pipeline or the second pipeline provided with the water-soluble selenium core with the water from the second pipeline or the first pipeline not provided with the water-soluble selenium core.

[0007] Further, the selenium water generating box is provided with a selenium detector for detecting the content of selenium.

[0008] Further, the second end and the third end of the three-way valve are respectively provided with a first regulating valve and a second regulating valve at the connection with the input end of the first pipeline and the second pipeline, the first regulating valve and the second regulating valve control the water inflow proportion of the first pipeline and the second pipeline according to the selenium detection data of the selenium detector, so that the content of selenium in the selenium water in the selenium water generating box is always maintained between 0.0005 mg / L and 0.05 mg / L; when the selenium detector detects that the content of selenium in the selenium water generating box is too high, the water inflow of the first pipeline controlled by the first regulating valve or the water inflow of the second pipeline controlled by the second regulating valve is increased, and the water inflow of the second pipeline controlled by the second regulating valve or the water inflow of the first pipeline controlled by the first regulating valve is decreased, so as to reduce the water inflow through the water-soluble selenium core and reduce the concentration of selenium in the selenium water generating box; when the content of selenium in the selenium water generating box is too low, the water inflow of the first pipeline controlled by the first regulating valve or the water inflow of the second pipeline controlled by the second regulating valve is reduced, and the water inflow of the second pipeline controlled by the second regulating valve or the water inflow of the first pipeline controlled by the first regulating valve is increased, so as to increase the water inflow through the water-soluble selenium core and increase the concentration of selenium in the selenium water generating box.

[0009] Further, the detection precision of the selenium detector in the selenium water generating box is capable of accurately detecting the change of 0.01-0.1 mg of selenium content per liter of water.

[0010] Further, the top of the pure water tank is provided with a photochemical disinfection device.

[0011] Further, the disinfection wavelength of the photochemical disinfection device is 250-280 nm.

[0012] Further, the heavy metal ion filter can remove more than 99% of common heavy metal ions.

[0013] Further, the filtering precision of the micron filter reaches 0.1-0.5 microns.

[0014] The utility model relates to a kind of selenium-containing direct drinking water's preparation device, by the multi-component combination of raw water tank to pure water tank, by gradient filter, biological membrane elimination device, heavy metal ion filter and micron filter etc., can effectively remove various impurities in water, biological membrane, heavy metal and small particle, further improve water quality purity in combination with low molecular organic matter removal device, guarantee drinking water safety and health;While selenium water configuration device is assisted by three-way valve, water-soluble selenium core, stirring motor and high-precision selenium detector, can accurately control the dissolution and mixing of selenium element, ensure that the selenium content in every liter of water is accurately in 0.01-0.1 milligram range, meet the selenium element intake needs of human body while avoiding excessive intake risk;In pure water tank top 250-280nm wavelength's photochemical disinfection device, can effectively kill bacteria and virus in water, prevent secondary pollution, keep the microbial safety of direct drinking water in storage process. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the overall structure schematic diagram of an embodiment of the utility model.

[0016] The meaning of each reference sign in the drawing is as follows: raw water tank 1;Conveying pump 2;Gradient filter 3;Biological membrane elimination device 4;Heavy metal ion filter 5;Micron filter 6;Low molecular organic matter removal device 7;Selenium water configuration device 8;Three-way valve 81;First pipe line 82;Second pipe line 83;Water-soluble selenium core 84;Selenium water generation tank 85;Mixing mechanism 851;Stirring motor 8511;Switch valve 86;Pure water tank 9;Photochemical disinfection device 91. DETAILED DESCRIPTION

[0017] The following is further detailed by specific implementation manner:

[0018] Please see Figure 1 The utility model discloses a kind of selenium-containing direct drinking water's preparation device including raw water tank 1, conveying pump 2, gradient filter 3, biological membrane elimination device 4, heavy metal ion filter 5, micron filter 6, low molecular organic matter removal device 7, selenium water configuration device 8 and pure water tank 9.Specifically, raw water tank 1, conveying pump 2, gradient filter 3, biological membrane elimination device 4, heavy metal ion filter 5, micron filter 6, low molecular organic matter removal device 7, selenium water configuration device 8 and pure water tank 9 are sequentially connected by pipeline by head and tail.The utility model can be sequentially connected by each component Form complete flow, can provide direct drinking water treated by multiple processes, containing appropriate selenium element and reliable quality for people, can effectively help people to meet the needs of selenium element through daily drinking water.

[0019] The raw water tank 1 is used to store raw water to be treated, and provides an initial water source for the entire production system, ensuring stable supply of the water source. The delivery pump 2 provides power for the flow of water between various devices, ensuring that the water flow can smoothly pass through the subsequent processing units in turn. In this embodiment, the delivery pump 2 is a variable frequency pump. Since the variable frequency pump uses a variable frequency motor, the power can be changed by adjusting the frequency, thereby controlling the speed and flow, achieving the purpose of energy saving. The variable frequency pump also has an automatic adjustment function, which can provide constant pressure water supply. After the raw water passes through the delivery pump 2, it is first filtered by the gradient filter 3 for preliminary filtration. According to different filtration accuracy requirements, the raw water is preliminarily filtered to remove larger particulate impurities such as silt and suspended matter in the water, reducing the load of the subsequent processing units and prolonging their service life. Then it is treated by the biofilm elimination device 4. The biofilm elimination device 4 can effectively remove the biological membrane that may exist in the water, prevent the biological membrane from breeding bacteria and affecting water quality and equipment operation, and ensure the biological safety of the water quality. After passing through the biofilm elimination device 4, the water is filtered by the heavy metal ion filter 5. In this embodiment, the heavy metal ion filter 5 can remove more than 99% of common heavy metal ions, such as lead, mercury, and cadmium. Passing through the heavy metal ion filter 5 can avoid the intake of excessive heavy metals by the human body, which can cause health problems such as nervous system damage and kidney disease, and significantly improve the safety of the water quality. After passing through the heavy metal ion filter 5, the water is filtered by the micron filter 6. In this embodiment, the filtration accuracy of the micron filter 6 is 0.1-0.5 microns. The 0.1-0.5 micron filtration accuracy can further intercept small particulate impurities in the water, including iron rust and colloids. Not only does it improve the clarity and transparency of the direct drinking water, making the taste more pure, but it also prevents these small impurities from causing wear or blockage to subsequent equipment components, ensuring stable operation of the entire production device. Finally, the low molecular organic matter removal device 7 is used to specifically remove residual low molecular organic matter in the water for deep treatment, removing possible low molecular organic matter such as pesticide residues and chemical pollutants in the water, further optimizing the water quality, and reducing the potential threat of harmful substances to human health.

[0020] The treated raw water is supplemented with selenium in the water through a selenium water preparation device 8. Specifically, the selenium water preparation device 8 includes a three-way valve 81, a first pipeline 82, a second pipeline 83, a water-soluble selenium core 84, and a selenium water generation tank 85. The first end of the three-way valve 81 is connected to the output end of the organic matter removal device 7, the second end and the third end are respectively connected to the input ends of the first pipeline 82 and the second pipeline 83, the output ends of the first pipeline 82 and the second pipeline 83 are in communication with the selenium water generation tank 85, and the water-soluble selenium core 84 is arranged on the first pipeline 82 or the second pipeline 83. In order to better mix the raw water in the selenium water generation tank 85 and the selenium water passing through the water-soluble selenium core 84, a mixing mechanism 851 is arranged at the selenium water generation tank 85 for mixing the selenium water mixture from the first pipeline 82 or the second pipeline 83 arranged with the water-soluble selenium core 84 with the water from the second pipeline 83 or the first pipeline 82 not arranged with the water-soluble selenium core 84. In this embodiment, a stirring motor 8511 is arranged outside the selenium water generation tank 85, the output end of the stirring motor 8511 extends into the inside of the selenium water generation tank 85 and is connected with a stirring shaft (not shown in the figure), and the outside of the stirring shaft is uniformly connected with stirring blades (not shown in the figure). Through the arrangement of the stirring motor 8511 and its stirring shaft and blades, the mixing of the substances in the selenium water generation tank 85 can be effectively promoted to be uniform. This avoids too high or too low local concentration of selenium elements, ensures that the selenium water concentration of each part can reach the expected standard, improves the consistency and stability of the selenium water quality, and makes the product quality more reliable. In other embodiments, an aeration device can also be installed at the bottom or side of the selenium water generation tank (85), and air bubbles are formed by blowing air into the water. The air bubbles will drive the flow of the selenium water mixture and water during the rising process, increasing the contact area and disturbance degree between the liquids. The aeration device can be connected to an air compressor to adjust the mixing intensity by controlling the air flow and aeration time. At the same time, the aeration head can also be designed in different shapes, such as a microporous aeration head, to make the air bubbles more uniform and small, enhancing the mixing effect.

[0021] In order to detect the content of selenium in the water in the selenium water generating tank 85, a selenium detector (not shown in the figure) for detecting the content of selenium is arranged in the selenium water generating tank 85. In order to control the concentration more accurately, the detection accuracy of the selenium detector in the selenium water generating tank 85 is able to accurately detect the change of the content of 0.01-0.1 milligrams of selenium per liter of water. The arrangement of the selenium detector in the selenium water generating tank 85 can monitor the content of selenium in real time, which helps to accurately grasp the quality of the selenium water and provides an accurate basis for subsequent adjustment of the concentration of selenium. In the embodiment, the selenium detector uses a selenium ion selective electrode, specifically, a detection port is arranged on the selenium water generating tank, the ion selective electrode is inserted into the detection port, and the concentration of selenium ions is determined by measuring the electrode potential. The principle is that the sensitive film on the surface of the electrode has a selective response to selenium ions, and the electrode potential is linearly related to the logarithm of the activity of selenium ions. First, the electrode is calibrated, and the potential-concentration relationship is determined by using a selenium standard solution with a known concentration, and then the content of selenium in the selenium water in the tank can be measured.

[0022] In order to adjust the content of selenium element in the selenium water generating tank 85, the first regulating valve 811 and the second regulating valve 812 are respectively arranged at the connection between the second end and the third end of the three-way valve 81 and the input end of the first pipeline 82 and the second pipeline 83. The first regulating valve 811 and the second regulating valve 812 control the water inlet proportion of the first pipeline 82 and the second pipeline 83 according to the selenium element detection data of the selenium detector, so that the content of selenium element in the selenium water generating tank 85 is always kept between 0.0005 mg / L and 0.05 mg / L. When the selenium detector detects that the content of selenium element in the selenium water generating tank 85 is too high, the water outlet amount of the first pipeline 82 controlled by the first regulating valve 811 or the water outlet amount of the second pipeline 83 controlled by the second regulating valve 812 is increased, the water outlet amount of the second pipeline 83 controlled by the second regulating valve 812 or the water outlet amount of the first pipeline 82 controlled by the first regulating valve 811 is reduced, so as to reduce the water amount passing through the water-soluble selenium core 84, and the selenium element concentration in the unit volume in the selenium water generating tank 85 is reduced. When the content of selenium element in the selenium water generating tank 85 is too low, the water outlet amount of the first pipeline 82 controlled by the first regulating valve 811 or the water outlet amount of the second pipeline 83 controlled by the second regulating valve 812 is reduced, the water outlet amount of the second pipeline 83 controlled by the second regulating valve 812 or the water outlet amount of the first pipeline 82 controlled by the first regulating valve 811 is increased, so as to increase the water amount passing through the water-soluble selenium core 84, and the selenium element concentration in the unit volume in the selenium water generating tank 85 is increased. When the selenium detector detects that the content of selenium element in the selenium water generating tank 85 is too high, and the water-soluble selenium core 84 is arranged on the first pipeline 82, specifically, the water outlet amount of the second pipeline 83 is increased by the second regulating valve 812, and the water outlet amount of the first pipeline 82 is reduced by the first regulating valve 811; when the water-soluble selenium core 84 is arranged on the second pipeline 83, specifically, the water outlet amount of the first pipeline 82 is increased by the first regulating valve 811, and the water outlet amount of the second pipeline 83 is reduced by the second regulating valve 812. When the selenium detector detects that the content of selenium element in the selenium water generating tank 85 is too low, and the water-soluble selenium core 84 is arranged on the first pipeline 82, specifically, the water outlet amount of the second pipeline 83 is reduced by the second regulating valve 812, and the water outlet amount of the first pipeline 82 is increased by the first regulating valve 811; when the water-soluble selenium core 84 is arranged on the second pipeline 83, specifically, the water outlet amount of the first pipeline 82 is reduced by the first regulating valve 811, and the water outlet amount of the second pipeline 83 is increased by the second regulating valve 812.In the embodiment, since the water-soluble selenium core 84 is arranged on the second pipeline 83, when the selenium element content is too high, the water output of the second pipeline 83 is reduced through the second adjusting valve 812, and the water output of the first pipeline 82 is increased through the first adjusting valve 811; conversely, the water output of the first pipeline 82 is reduced, and the water output of the second pipeline 83 is increased, and the water output through the water-soluble selenium core 84 can be dynamically adjusted through the adjustment of the three-way valve 81, so that the concentration of the selenium element in a unit volume in the selenium water generating tank 85 can be accurately controlled, and the concentration is kept in a suitable range.

[0023] After the selenium water is configured, the selenium-containing direct drinking water enters the pure water tank 9 for storage. A switch valve 86 is arranged between the selenium water generating tank 85 and the pure water tank to open or close the outflow of the selenium water in the selenium water generating tank 85. A photochemical disinfection device 91 is arranged on the top of the pure water tank 9. After the selenium-containing direct drinking water enters the pure water tank for storage, the photochemical disinfection device 91 is started, and the disinfection wavelength of the photochemical disinfection device 91 is 250-280 nm in the embodiment. The light in the wavelength has a strong killing effect on common pathogenic microorganisms in water, so that the direct drinking water in the pure water tank 9 can keep the microbial indicators qualified during storage.

[0024] The above is only an embodiment of the utility model, and the well-known specific structure and characteristics and other common knowledge in the scheme are not described too much. It should be pointed out that for those skilled in the art, without departing from the structure of the utility model, a number of deformations and improvements can be made, which should also be regarded as the protection range of the utility model, and these will not affect the effect and practicability of the utility model.

Claims

1. A device for producing selenium-containing direct drinking water, characterized in that it comprises: The original water tank, the delivery pump, the gradient filter, the biological membrane eliminating device, the heavy metal ion filter, the micron filter, the low-molecular organic matter removing device, the selenium water configuration device and the pure water tank are sequentially connected in series through pipelines.

2. The device for producing selenium-containing direct drinking water according to claim 1, characterized in that: The selenium water configuration device comprises a three-way valve, a first pipeline, a second pipeline, a water-soluble selenium core and a selenium water generating tank.

3. The device for producing selenium-containing direct drinking water according to claim 2, characterized in that: The selenium water generating tank is provided with a mixing mechanism for mixing the selenium water mixed solution from the first pipeline or the second pipeline provided with the water-soluble selenium core with water from the second pipeline or the first pipeline without the water-soluble selenium core.

4. The device for producing selenium-containing direct drinking water according to claim 2, characterized in that: The selenium detector is arranged in the selenium water generating tank for detecting the content of selenium.

5. The device for producing selenium-containing direct drinking water according to claim 4, characterized in that: The second end and the third end of the three-way valve are respectively provided with first and second regulating valves at the connection positions of the input ends of the first and second pipelines.

6. The device for producing selenium-containing direct drinking water according to claim 4, characterized in that: The selenium detector in the selenium water generating tank has a detection precision of 0.01-0.1 mg of selenium content per liter of water.

7. The device for producing selenium-containing direct drinking water according to claim 1, characterized in that: The top of the pure water tank is provided with a photochemical disinfection device.

8. The device for producing selenium-containing direct drinking water according to claim 7, characterized in that: The disinfection wavelength of the photochemical disinfection device is 250-280 nm.

9. The device for producing selenium-containing direct drinking water according to claim 1, characterized in that: The heavy metal ion filter can remove more than 99% of common heavy metal ions.

10. The apparatus for producing selenium-containing direct drinking water according to claim 1, characterized in that: The filtering precision of the micron filter reaches 0.1-0.5 microns.

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