Chemical pollutant detection device based on nanometer material

Abstract

The utility model relates to the technical field of chemical pollutant detection, in particular to a chemical pollutant detection device based on a nano material, which comprises a permeation tube and a filter tube which are magnetically attracted together through two magnets, the nano material, namely a nano RO (Reverse Osmosis) membrane, is arranged between the two tube bodies, the filter tube is fixed on a pushing mechanism capable of pushing forwards and backwards, and the permeation tube is fixed on the filter tube. The permeation pipe is clamped and fixed by a size-adjustable fixing mechanism, a heating device is further arranged on the periphery of the permeation pipe, a mechanical piston is arranged on a pipe opening of the permeation pipe, and a rubber pipe above the mechanical piston can be controlled to stretch out and draw back up and down through a micro motor; according to the utility model, the nano RO membrane is used for separating the upper layer and the lower layer of chemical pollutants so as to improve the pollution concentration and facilitate detection; a magnetic separation technology is adopted, manual direct contact is not needed, and harm of chemical pollutants to a human body is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical pollutant detection, in particular to a chemical pollutant detection device based on nanomaterials. Background Art

[0002] When laboratories of current scientific research institutions detect collected chemical pollutants, glass test tubes are commonly used. And during filtration, a large amount of chemical pollutant samples are required to be carried out in a flask or a large-volume box body. Moreover, during the experiment, laboratory operators need to frequently come into contact with chemical pollutants, which is easy to be contaminated with heavy metal ions and endanger the human body.

[0003] As an RO reverse osmosis membrane of nanomaterials, its pore size is as small as the nanometer level (1 nanometer = 10^-9 meters). Under a certain pressure, water molecules can pass through the RO membrane, while impurities such as inorganic salts, heavy metal ions, organic matters, colloids, and bacteria in chemical pollutants cannot pass through the RO membrane. Thus, pure water and impurity pollutants can be separated and extracted.

[0004] Therefore, there is an urgent need for a detection device that uses new nanofiltration materials such as RO membranes, can perform separation and other tests with only a small amount of pollutant samples, and at the same time reduces the frequency of direct contact between operators and pollutants. Summary of the Utility Model

[0005] In order to make up for the deficiencies in the prior art and achieve the above functions, the utility model provides a chemical pollutant detection device based on nanomaterials relying on the nanomaterial RO membrane.

[0006] The utility model is realized through the following technical solutions:

[0007] A chemical pollutant detection device based on nanomaterials includes an osmotic tube for holding a sample to be tested and a filtration tube located below the osmotic tube. The osmotic tube includes a tube body a which is vertically through, and tube protrusions a and b are arranged on the outer wall. A circular magnet a is installed on the outer wall below the tube protrusion b. The outer layer of the magnet a and the lower part of the osmotic tube are both wrapped by a nanometer RO membrane;

[0008] The bottom of the filtration tube is arc-shaped and closed. A tube protrusion c is arranged on the outer wall of the filtration tube. A circular magnet b is clamped above the tube protrusion c. The periphery and the upper part of the magnet b are wrapped by a sealing rubber sleeve, and the center of the upper part of the sealing rubber sleeve is a round hole;

[0009] The filtration tube is installed in a fixed tank of a lower pushing mechanism;

[0010] The tube body a of the osmotic tube is fixed in a clamping ring on the left fixing mechanism, and the clamping ring abuts against the lower end surface of the tube protrusion a;

[0011] The outside of the permeation tube is surrounded by two heating rings of the heating device;

[0012] A motorized piston is provided at the mouth of the bottle above the permeation tube.

[0013] Further, when the magnet a abuts against the tube protrusion b, the lower end surface of the magnet a is flush with the lower end surface of the tube body a; the nano RO membrane is locked by a clamp installed on the outside, and the clamp can be manually adjusted in tightness.

[0014] Further, when the magnet b abuts against the upper end surface of the tube protrusion c, the upper end surface of the magnet b is flush with the upper end surface of the tube body b; the diameter of the round hole on the sealing rubber sleeve is smaller than the inner diameter of the tube wall of the tube body b; the lower end surface of the magnet a and the upper end surface of the magnet b attract each other with opposite magnetic poles.

[0015] Further, the lower end surface of the tube protrusion c abuts against the upper end surface of the fixed tank, the pushing mechanism further includes an electric slide table module, the fixed tank is fixed on the slider of the electric slide table module, and the electric slide table module can control the slider to move back and forth.

[0016] Further, the snap ring is fixed by two support beams at its end, a guide post penetrates between the front and rear support beams and a bolt is fixed, grooves are provided on the inner sides of the two support beams, a spring is installed in the grooves, the other ends of the two support beams are slidably installed in the guide slide, and the guide slide is fixed on the lower support frame.

[0017] Further, the vertical position of the heating ring is between the snap ring and the tube protrusion b, the heating ring is connected to the heater on the right, and the heater supplies heat energy.

[0018] Further, the motorized piston is based on a wooden piston, a "concave"-shaped fixing block is arranged above the wooden piston, a rubber tube inserted into the through hole of the wooden piston is located in the card slot of the fixing block, a roller fixed on the rotating shaft is also arranged in the card slot of the fixing block, the roller is driven to rotate by a micro motor outside the fixing block, the surface of the roller is provided with knurling and is in contact with the rubber tube, and the inner and outer expansion and contraction of the rubber tube are controlled by the micro motor.

[0019] The beneficial effects of the present utility model are: (1) Using nanomaterials, namely nano RO membranes, to separate chemical pollutants in upper and lower layers to increase their pollution concentration, which is more conducive to detection. (2) Adopting the technology of magnetic separation, without direct manual contact, reducing the harm to the human body. (3) The adjustable snap ring can adapt to test tube bodies of different sizes. (5) The motorized piston can control the length of the rubber tube inserted into the tube body, without manual adjustment. Description of the Drawings

[0020] Figure 1 It is a schematic three-dimensional structure diagram of the whole of the present utility model;

[0021] Figure 2 is Figure 1 Schematic diagram of the structure of the permeation tube in

[0022] Figure 3 is Figure 2 Semi-sectional view of the permeation tube;

[0023] Figure 4 is Figure 1 Schematic diagram of the structure of the filter tube in

[0024] Figure 5 is Figure 4 Semi-sectional structure diagram of the filter tube;

[0025] Figure 6 Schematic diagram of the structure of the pushing mechanism;

[0026] Figure 7 Top view of the present utility model after removing the pushing mechanism;

[0027] Figure 8 Schematic diagram of the overall structure of the motor piston.

[0028] In the figure:

[0029] 1. Permeation tube, 101. Tube body a, 102. Tube convex a, 103. Tube convex b, 104. Clamp, 105. Nano RO membrane, 106. Magnet a;

[0030] 2. Filter tube, 201. Tube body b, 202. Tube convex c, 203. Sealing rubber sleeve, 204. Magnet b;

[0031] 3. Pushing mechanism, 301. Fixed tank, 302. Slide block, 303. Electric slide table module;

[0032] 4. Fixing mechanism, 401. Snap ring, 402. Bolt, 403. Guide post, 404. Spring, 405. Guide slide, 406. Support frame, 407. Support beam;

[0033] 5. Heating device, 501. Heating ring, 502. Heater;

[0034] 6. Motor piston, 601. Wooden piston, 602. Rubber tube, 603. Fixed block, 604. Roller, 605. Micro motor. Detailed implementation method

[0035] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Usually, the components of the embodiments of the present invention described and shown in the accompanying drawings here can be arranged and designed in various different configurations.

[0036] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present invention.

[0037] As Figures 1 to 8 shown, the present invention includes a permeation tube 1 for holding a chemical pollutant sample to be tested and a filter tube 2 located below the permeation tube 1. The permeation tube 1 includes a tube body a101, the tube body a101 is vertically penetrated and the outer wall is provided with a tube convex a102 and a tube convex b103. The tube convex a102 and the tube convex b103 are integrally formed with the tube body a101 and are both made of glass. A circular magnet a106 is installed on the outer wall below the tube convex b103. The outer layer of the magnet a106 and the lower part of the permeation tube 1 are both wrapped by a nano RO membrane 105. The nano material is used to filter heavy metals, so that heavy metal pollutants only remain in the tube body a102. When the magnet a106 abuts against the tube convex b103, the lower end surface of the magnet a106 is flush with the lower end surface of the tube body a101. The nano RO membrane 105 is locked by a clamp 104 installed on the outside, and the clamp 104 can be manually adjusted in tightness.

[0038] As Figure 4 and Figure 5 shown, the bottom of the filter tube 2 is arc-shaped and closed. A tube convex c202 is provided on the outer wall of the filter tube 2. A circular magnet b204 is clamped above the tube convex c202. The periphery and the upper part of the magnet b204 are wrapped by a sealing rubber sleeve 203. The center of the upper part of the sealing rubber sleeve 203 is a round hole. When the magnet b204 abuts against the upper end surface of the tube convex c202, the upper end surface of the magnet b204 is flush with the upper end surface of the tube body b201. The diameter of the round hole on the sealing rubber sleeve 203 is smaller than the inner diameter of the tube wall of the tube body b201 to prevent the water seeping down from above from leaking to the outside. The lower end surface of the magnet a106 and the upper end surface of the magnet b204 are attracted by opposite magnetic poles, which can ensure the magnetic attraction contact between the upper and lower tubes.

[0039] As Figure 6As shown in the figure, the filter tube 2 is installed in the fixed tank 301 of the lower pushing mechanism 3; the lower end face of the tube convex c202 abuts against the upper end face of the fixed tank 301. The pushing mechanism 3 further includes an electric slide table module 303. The fixed tank 301 is fixed on the slider 302 of the electric slide table module 303. The electric slide table module 303 can control the slider 302 to move forward and backward to the corresponding position via the host computer.

[0040] As Figure 7 shown in the figure, the tube body a101 of the permeation tube 1 is fixed in the snap ring 401 on the left fixing mechanism 4, and the snap ring 401 abuts against the lower end face of the tube convex a102; the snap ring 401 is fixed by two support beams 407 at its end. A guide post 403 penetrates between the front and rear support beams 407 and a bolt 402 is fixed. There are grooves on the inner sides of the two support beams 407, and a spring 404 is installed in the grooves. The other ends of the two support beams 407 are slidably installed in the guide slide 405, and the guide slide 405 is fixed on the lower support frame 406; specifically, under the action of the spring, the two snap rings 401 can expand the distance to adapt to larger-sized tube bodies a101, and the cooperation of the bolt 402 and the nut can be locked for limit. The front and rear directions are restricted by the card slots on the guide slide 405 and the guide post 403.

[0041] The outside of the permeation tube 1 is surrounded by two heating rings 501 of the heating device 5; the vertical position of the heating ring 501 is between the snap ring 401 and the tube convex b103. The heating ring 501 is connected to the heater 502 on the right, and the heater 502 supplies heat energy.

[0042] As Figure 8 shown in the figure, a motor-driven piston 6 is provided at the bottle mouth above the permeation tube 1; the motor-driven piston 6 is based on a wooden piston 601. There is a "concave"-shaped fixing block 603 above the wooden piston 601. The rubber tube 602 inserted into the through hole of the wooden piston 601 is located in the card slot of the fixing block 603. There is also a roller 604 fixed on the rotating shaft in the card slot of the fixing block 603. The roller 604 is driven to rotate by a micro motor 605 outside the fixing block 603. The surface of the roller 604 is provided with knurling and is in contact with the rubber tube 602. The telescoping inside and outside of the rubber tube 602 is controlled by the micro motor 605. The micro motor 605 drives the roller 604 to rotate, thereby rubbing the rubber tube 602 to extend and retract up and down. A rubber strip is provided between the rubber tube 602 and the through hole on the wooden piston 601 to achieve a sealing effect. This is the prior art and will not be elaborated here.

[0043] The operation process and principle of the present invention are as follows:

[0044] (1) Select a suitable nano RO membrane to wrap the lower part of the tube body a101, lock it with a clamp 104, fix the permeation tube 1 in the clamping ring 401, lock the clamping ring 401, and then load the chemical pollutant to be measured into the tube body a; (2) Place the filter tube 2 into the fixed tank 301, and control the pushing mechanism 3 through the upper computer to move the filter tube 2 to directly below the permeation tube 1. The permeation tube 1 and the filter tube 2 are attached to each other through magnetic attraction, and there is only one layer of nano RO membrane between them; (3) Insert the motorized piston 6 into the bottle mouth position of the permeation tube 1 for sealing. The upper end of the rubber tube 602 can be extended to connect to a pressure pump or a heavy metal detection device. Driven by the micro motor 605, the rubber tube 602 can either pressurize the liquid in the tube without contacting the pollutant to be measured or extend into the liquid to be measured for extraction; during the whole process, the operator does not directly contact the chemical pollutant; (4) The chemical pollutant is pressurized to pass through the nano RO membrane and enter the pure water in the filter tube 2. After the pressurization is completed, the slider 302 moves forward, forcing the permeation tube 1 and the filter tube 2 to separate; what remains in the permeation tube 1 is the pollutant with a higher concentration, and the pure water can be taken for testing to prove the result. (5) If it is necessary to increase the temperature during the detection process, the heating device 5 can be turned on.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Any other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solutions of the present invention shall be covered by the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.

Claims

1. A chemical pollutant detection device based on nanomaterials, comprising a permeation tube (1) for containing a sample to be measured and a filtration tube (2) located below the permeation tube (1), characterized in that: The permeation tube (1) includes a tube body a (101). The tube body a (101) is vertically permeable, and tube protrusions a (102) and tube protrusions b (103) are provided on the outer wall. A circular magnet a (106) is installed on the outer wall below the tube protrusions b (103). The outer layer of the magnet a (106) and the lower part of the permeation tube (1) are both wrapped by a nano RO membrane (105). The bottom of the filter tube (2) is arc-shaped and closed. Tube protrusions c (202) are provided on the outer wall of the filter tube (2). A circular magnet b (204) is clamped above the tube protrusions c (202). The periphery and the upper part of the magnet b (204) are wrapped by a sealing rubber sleeve (203). The center of the upper part of the sealing rubber sleeve (203) is a round hole. The filter tube (2) is installed in a fixed tank (301) of the lower pushing mechanism (3). The tube body a (101) of the permeation tube (1) is fixed in a snap ring (401) on the left fixing mechanism (4), and the snap ring (401) abuts against the lower end surface of the tube protrusion a (102). The outer side of the permeation tube (1) is surrounded by two heating rings (501) of a heating device (5). A motorized piston (6) is provided at the bottle mouth above the permeation tube (1).

2. The chemical contaminant detection device based on nanomaterials according to claim 1, wherein: When the magnet a (106) abuts against the tube protrusion b (103), the lower end surface of the magnet a (106) is flush with the lower end surface of the tube body a (101). The nano RO membrane (105) is locked by a clamp (104) installed on the outside, and the clamp (104) can be manually adjusted in tightness.

3. The chemical contaminant detection device based on nanomaterials according to claim 1, characterized in that: When the magnet b (204) abuts against the upper end surface of the tube protrusion c (202), the upper end surface of the magnet b (204) is flush with the upper end surface of the tube body b (201). The diameter of the round hole on the sealing rubber sleeve (203) is smaller than the inner diameter of the tube wall of the tube body b (201). The lower end surface of the magnet a (106) and the upper end surface of the magnet b (204) attract each other with opposite magnetic poles.

4. The chemical pollutant detection device based on nanomaterials according to claim 1, characterized in that: The lower end surface of the tube protrusion c (202) abuts against the upper end surface of the fixed tank (301). The pushing mechanism (3) further includes an electric slide table module (303). The fixed tank (301) is fixed on a slider (302) of the electric slide table module (303), and the electric slide table module (303) can control the slider (302) to move back and forth.

5. The chemical pollutant detection device based on nanomaterials according to claim 1, wherein: The snap ring (401) is fixed by two support beams (407) at its end. A guide post (403) penetrates between the front and rear support beams (407), and a bolt (402) is fixed. Grooves are provided inside the two support beams (407), and a spring (404) is installed in the grooves. The other ends of the two support beams (407) are slidably installed in a guide slide (405), and the guide slide (405) is fixed on the lower support frame (406).

6. The chemical pollutant detection device based on nanomaterials according to claim 1, characterized in that: The vertical position of the heating ring (501) is between the snap ring (401) and the tube protrusion b (103). The heating ring (501) is connected to the heater (502) on the right, and heat energy is supplied by the heater (502).

7. The chemical pollutant detection device based on nanomaterials according to claim 1, characterized in that: The motor piston (6) is based on a wooden piston (601). Above the wooden piston (601), there is a "concave"-shaped fixing block (603). A rubber tube (602) inserted into the through-hole of the wooden piston (601) is located in the card slot of the fixing block (603). In the card slot of the fixing block (603), there is also a roller (604) fixed on the rotating shaft. The roller (604) is driven to rotate by a micro-motor (605) outside the fixing block (603). The surface of the roller (604) is provided with knurling and is in contact with the rubber tube (602). The internal and external expansion and contraction of the rubber tube (602) are controlled by the micro-motor (605).

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