CN114354871A - Underground water pollution condition detection device and detection method - Google Patents
Underground water pollution condition detection device and detection method Download PDFInfo
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- CN114354871A CN114354871A CN202111667259.8A CN202111667259A CN114354871A CN 114354871 A CN114354871 A CN 114354871A CN 202111667259 A CN202111667259 A CN 202111667259A CN 114354871 A CN114354871 A CN 114354871A
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- 238000003911 water pollution Methods 0.000 title claims description 19
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- 239000000523 sample Substances 0.000 claims abstract description 23
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- 238000005070 sampling Methods 0.000 claims abstract description 18
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- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 24
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- MRUAUOIMASANKQ-UHFFFAOYSA-N cocamidopropyl betaine Chemical compound CCCCCCCCCCCC(=O)NCCC[N+](C)(C)CC([O-])=O MRUAUOIMASANKQ-UHFFFAOYSA-N 0.000 claims description 9
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- CSNJTIWCTNEOSW-UHFFFAOYSA-N carbamothioylsulfanyl carbamodithioate Chemical compound NC(=S)SSC(N)=S CSNJTIWCTNEOSW-UHFFFAOYSA-N 0.000 claims description 8
- 229920001084 poly(chloroprene) Polymers 0.000 claims description 8
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Abstract
The invention discloses a device for detecting pollution condition of underground water. The collecting box comprises a collecting part and a detecting part fixedly connected to the collecting part, wherein the collecting part comprises a collecting box body, a water pumping part positioned in the collecting box body and a water taking part connected with the water pumping part, and the collecting box body is divided into a plurality of spaces for respectively placing the water pumping parts; the detection part comprises a detection host and a detection probe rod, the detection probe rod extends into the collection box body, and the water taking part comprises a telescopic pipe and a filter screen which is fixed on the telescopic pipe in a covering mode and is far away from the end part of the water pumping part. The detection part and the sampling part are integrated into a whole to form a new groundwater pollution condition detection device. When the water sampling device is used, the water taking part extends into the sampling hole, water pumping is stopped when the floating rod is lifted and shaken by water in the collecting box, and the detection part is started to detect a water sample. In the process that the underground water in the space of the collecting box body is detected, the rest of the space can be sampled simultaneously. With this circulation, the detection efficiency of groundwater pollution condition has been improved greatly.
Description
Technical Field
The invention relates to the field of sewage detection, in particular to a device for detecting underground water pollution conditions.
Background
Groundwater pollution is a phenomenon in which the quality of groundwater deteriorates due to human factors. The causes of groundwater pollution are mainly: industrial wastewater is directly discharged underground, contaminated surface water invades into underground aquifers, human and animal excreta or water contaminated by excessive use of pesticides permeates underground, and the like. As a result of the contamination, the contents of harmful components such as phenol, chromium, mercury, arsenic, radioactive substances, bacteria, organic substances, etc. in the groundwater are increased. The polluted underground water is harmful to human health and industrial and agricultural production.
Groundwater is the water that is assigned to and is deposited in the rock space below ground, because there is the hindrance of earth, rock, can be earlier when the sampling become the sampling hole with the soil layer and the rock layer drilling on top layer, later with sampling device along the sampling hole stretch into carry out the collection of groundwater, send the water sample of gathering to the detection room at last and detect.
For the related technologies, a long time is needed for sample delivery in a remote place of a sampling place, the pollution condition of underground water is difficult to know in time, and people who drink the polluted underground water cause great harm to health and need further improvement.
Disclosure of Invention
In order to know the pollution condition of underground water in time and in real time, the application provides a device and a method for detecting the pollution condition of the underground water.
In a first aspect, the present application provides a groundwater contamination condition detection device.
The underground water pollution condition detection device comprises a collection part and a detection part fixedly connected to the collection part, wherein the collection part comprises a collection box body, a water pumping part positioned in the collection box body and a water taking part connected with the water pumping part, and the collection box body is divided into a plurality of spaces for respectively placing the water pumping parts; the detection portion comprises a detection host and a detection probe rod, the detection probe rod extends into the collection box body, and the water taking portion comprises a telescopic pipe and a filter screen fixed on the end portion of the telescopic pipe far away from the water pumping portion in a covering mode.
The detection part and the sampling part are integrated into a whole to form a new groundwater pollution condition detection device. During the use, stretch into the sampling hole with water intaking portion, groundwater passes through in the filter screen suction collection box, and the measuring part detects the water sample. In the process that the underground water in the space of the collecting box body is detected, the rest of the space can be sampled simultaneously. After the previous space is detected, the next space can be detected, and the previous space continues to be sampled, so that circulation is realized, and the detection efficiency of the underground water pollution condition is greatly improved.
Preferably, the collection box is provided with a floating rod for detecting water level, the floating rod is perpendicular to the surface of the collection box close to the detection part, and the length of the floating rod extending into the interior of the collection box is smaller than the length of the detection probe rod in the interior of the collection box.
When the amount of the collected underground water touches the floating ball, the detection probe is described to be immersed in the water, the working state capable of detecting is achieved, the floating rod floats upwards, and at the moment, the water pumping is stopped for detection. The floating rod is arranged, so that the time for stopping pumping water is judged conveniently, and the operation efficiency of the underground water pollution condition detection device is improved.
Preferably, the filter screen is prepared by the following steps:
immersing the metal filter screen into latex solution with the temperature of 30-40 ℃ for 10-15s, then carrying out setting under the condition of the temperature of 135-145 ℃, then leaching the metal filter screen with hot water with the temperature of 70-80 ℃, then drying for 25-40s under the condition of the temperature of 120-140 ℃, and then vulcanizing for 3-10 minutes under the condition of the temperature of 145-155 ℃ to obtain the filter screen with the latex protective layer.
Preferably, the setting temperature of the metal filter screen is 140-145 ℃, the leaching temperature is 70-75 ℃, the drying temperature is 130-135 ℃, the drying time is 30-40 seconds, the vulcanizing temperature is 148-152 ℃, and the vulcanizing time is 5-8 minutes.
The filter screen that uses at present has the metal filter screen, and the metal filter screen is softer and has higher intensity, is difficult for being punctured by the rock, nevertheless soaks in the water especially rusts easily in having the water that pollutes, leads to the testing result inaccurate. Relative all the other stainless steel that are difficult for rusty of metal is difficult to the deformation, and when inserting the sampling hole with water intaking portion, the filter screen perk easily between unevenness's rock, is difficult to further extend down again and is close groundwater, leads to groundwater's sampling efficiency lower. In order to solve the problem, the filter screen material which is not easy to rust is a filter screen made of a high polymer material, and although the filter screen is not easy to corrode, the strength of the filter screen is not very good, and when the filter screen is stretched into a sampling hole for sampling, the filter screen is easily scraped by sundries such as rocks and branches, and the effect of filtering the sundries cannot be achieved.
In order to design a filter screen suitable for being used in a water pollution detection process, the inventor wraps a metal filter screen by latex liquid to provide a protective layer for the metal filter screen, so that the rusting condition of the filter screen is reduced; the metal filter screen is used as the strength support to enable the filter screen to obtain higher strength, the problem that the metal filter screen is broken due to collision of impurities such as rocks and branches is solved, the metal filter screen and the emulsion are wrapped to enable the filter screen to obtain higher strength and not to rust easily, the detection device is enabled to measure more accurately, and the service life of the filter screen is prolonged.
Preferably, the emulsion is prepared from the following components in parts by mass:
water 300-;
40-50 parts of neoprene latex;
0.1-0.8 part of 2, 5-dimethyl-2, 5-di-tert-butyl hexane peroxide;
0.1-0.6 part of trithiocyanuric acid;
15-25 parts of potassium hydroxide;
0.3-0.8 part of sodium dithiocarbamate;
0.2-0.5 part of thiuram disulfide.
Preferably, the emulsion comprises the following components in parts by weight:
300 portions of water and 350 portions of water;
40-45 parts of neoprene latex;
0.3-0.5 part of 2, 5-dimethyl-2, 5-di-tert-butyl hexane peroxide;
0.2-0.4 part of trithiocyanuric acid;
15-20 parts of potassium hydroxide;
0.5-0.8 part of sodium dithiocarbamate;
0.2-0.3 part of thiuram disulfide.
Preferably, before the metal filter screen is soaked in the latex solution, the metal filter screen is firstly soaked in a leveling solution with the temperature of 70-80 ℃, and is dried after being soaked for 10-15 seconds, wherein the leveling solution is prepared by mixing calcium sulfate, cocamidopropyl betaine and lauramide according to the weight ratio of 1: (1-4): (0.6-1.4) in mass ratio.
Preferably, the leveling liquid is prepared from calcium sulfate, cocamidopropyl betaine and lauramide in a ratio of 1: (2.5-3): (0.9-1.2) in mass ratio.
After the metal filter screen is soaked in the emulsion, the leveling property of the emulsion is not stable, so that the emulsion is not uniformly distributed on the metal filter screen, and even partial meshes are blocked. And in contrast, the metal filter screen is soaked in the leveling solution before being soaked in the emulsion, dried, soaked in the emulsion and vulcanized. After the leveling liquid is soaked, the latex can be uniformly distributed on the metal filter screen and is not easy to block the filter screen holes, and an even protective layer is formed on the surface of the vulcanized metal filter screen.
In a second aspect, the present application provides a method for detecting a contamination condition of underground water.
The method for detecting the pollution condition of the underground water comprises the steps that the water taking part extends into a sampling hole, the underground water is pumped into the collecting box body through the filter screen, the water pumping is stopped when the floating rod rises and shakes, and the detection part is started to detect the water sample. In the process that the underground water in the space of the collecting box body is detected, the rest of the space can be sampled simultaneously. After the previous space is detected, the next space can be detected, and the previous space continues to be sampled, so as to circulate.
In summary, the detection unit and the sampling unit are integrated into a new groundwater pollution condition detection device. During the use, stretch into the sampling hole with water intaking portion, groundwater passes through in the filter screen suction collection box, and the water of waiting in the collection box makes the float lever rise and rock and stop drawing water, opens the detection portion and detects the water sample. In the process that the underground water in the space of the collecting box body is detected, the rest of the space can be sampled simultaneously. The detection efficiency of the pollution condition of the underground water is greatly improved.
In addition, in order to design a filter screen suitable for being used in the water pollution detection process, the inventor wraps the metal filter screen by using latex solution to provide a protective layer for the metal filter screen, so that the rusting condition of the filter screen is reduced; the metal filter screen is used as the strength support to enable the filter screen to obtain higher strength, the problem that the metal filter screen is broken due to collision of impurities such as rocks and branches is solved, the metal filter screen and the emulsion are wrapped to enable the filter screen to obtain higher strength and not to rust easily, the detection device is enabled to measure more accurately, and the service life of the filter screen is prolonged.
After the leveling liquid of this application soaks, emulsion can distribute evenly and be difficult for blockking up the filter screen hole on the metal filter screen, vulcanizes back metal filter screen surface and forms even protective layer, has improved the resistant intensity of rolling over of protective layer, has increased the life of filter screen.
Drawings
Fig. 1 is a schematic partial cross-sectional view of an apparatus for detecting contamination of groundwater according to application example 1.
Description of reference numerals: 1. a collecting section; 11. a collection box body; 12. a water pumping part; 13. a water taking part; 131. a telescopic pipe; 132. a filter screen; 2. a detection unit; 21. detecting a host; 22. detecting the probe rod; 3. a floating rod.
Detailed Description
Preparation example
Preparation example 1
The preparation example discloses a preparation method of latex, which comprises the following steps:
step 1), preparation of vulcanizing agent dispersion: adding 2, 5-dimethyl-2, 5-di-tert-butyl hexane peroxide 1.0g, trithiocyanuric acid 1.0g and water 1.5Kg into a ball mill in sequence, and grinding for 10h to obtain a vulcanizing agent dispersion;
step 2), preparation of accelerator dispersion: sequentially adding 150g of potassium hydroxide, 3.0g of sodium dithiocarbamate and 2.0g of thiuram disulfide into 1.5Kg of water, and grinding for 8 hours to obtain an accelerator dispersion;
and 3) uniformly mixing the vulcanizing agent dispersion, the accelerator dispersion and 0.4Kg of neoprene latex in a dipping pool to obtain the latex.
Preparation example 2
The preparation example discloses a preparation method of latex, which comprises the following steps:
step 1), preparation of vulcanizing agent dispersion: adding 2, 5-dimethyl-2, 5-di-tert-butyl hexane peroxide 8.0g, trithiocyanuric acid 6.0g and water 2.0Kg into a ball mill in sequence, and grinding for 10h to obtain a vulcanizing agent dispersion;
step 2), preparation of accelerator dispersion: adding 250g of potassium hydroxide, 8.0g of sodium dithiocarbamate and 5.0g of thiuram disulfide into 2.0Kg of water in sequence, and grinding for 8 hours to obtain an accelerator dispersion;
and 3) uniformly mixing the vulcanizing agent dispersion, the accelerator dispersion and 0.5Kg of neoprene latex in a dipping pool to obtain the latex.
Preparation example 3
The preparation example discloses a preparation method of latex, which comprises the following steps:
step 1), preparation of vulcanizing agent dispersion: adding 2, 5-dimethyl-2, 5-di-tert-butyl hexane peroxide (3.0 g), cyanuric acid (4.0 g) and water (1.5 Kg) into a ball mill in sequence, and grinding for 10h to obtain a vulcanizing agent dispersion;
step 2), preparation of accelerator dispersion: sequentially adding 150g of potassium hydroxide, 5.0g of sodium dithiocarbamate and 2.0g of thiuram disulfide into 1.5Kg of water, and grinding for 8 hours to obtain an accelerator dispersion;
and 3) uniformly mixing the vulcanizing agent dispersion, the accelerator dispersion and 0.4Kg of neoprene latex in a dipping pool to obtain the latex.
Preparation example 4
The preparation example discloses a preparation method of latex, which comprises the following steps:
step 1), preparation of vulcanizing agent dispersion: adding 2, 5-dimethyl-2, 5-di-tert-butyl hexane peroxide 3.5g, trithiocyanuric acid 2.0g and water 1.75Kg into a ball mill in sequence, and grinding for 10h to obtain a vulcanizing agent dispersion;
step 2), preparation of accelerator dispersion: sequentially adding 200g of potassium hydroxide, 8.0g of sodium dithiocarbamate and 3.0g of thiuram disulfide into 1.75Kg of water, and grinding for 8 hours to obtain an accelerator dispersion;
and 3) uniformly mixing the vulcanizing agent dispersion, the accelerator dispersion and 0.45Kg of neoprene latex in a dipping pool to obtain the latex.
Examples
Example 1
The embodiment discloses a manufacturing method of a filter screen
A 35-mesh aluminum filter screen of 35 mesh was immersed in an immersion bath containing the latex prepared in preparation example 1 at a temperature of 30 ℃ for 10 seconds, then, after setting in an oven at a temperature of 135 ℃, the 35-mesh aluminum filter screen was first leached with hot water at a temperature of 70 ℃, then, after drying in an oven at a temperature of 120 ℃ for 25 seconds, and then, after sulfidizing in an oven at a temperature of 145 ℃ for 10 minutes, a filter screen with a latex protective layer was obtained.
Example 2
The embodiment discloses a manufacturing method of a filter screen
The 35 mesh aluminum filter screen was immersed in an immersion bath containing the latex prepared in preparation example 2 at a temperature of 40 ℃ for 15 seconds, then set in an oven at a temperature of 145 ℃, then the 35 mesh aluminum filter screen was first leached with hot water at a temperature of 80 ℃, then dried in an oven at a temperature of 140 ℃ for 40 seconds, and then vulcanized in an oven at a temperature of 155 ℃ for 3 minutes to obtain a filter screen with a latex protective layer.
Example 3
The embodiment discloses a manufacturing method of a filter screen
The 35 mesh aluminum screen was immersed in an immersion bath containing the latex prepared in preparation example 3 at a temperature of 40 ℃ for 15 seconds, then set in an oven at a temperature of 140 ℃, then the 35 mesh aluminum screen was first leached with hot water at a temperature of 75 ℃, then dried in an oven at a temperature of 135 ℃ for 30 seconds, and then vulcanized in an oven at a temperature of 148 ℃ for 8 minutes to obtain a screen with a latex protective layer.
Example 4
The embodiment discloses a manufacturing method of a filter screen
The 35 mesh aluminum screen was immersed in an immersion bath containing the latex prepared in preparation example 4 at a temperature of 40 ℃ for 15 seconds, then set in an oven at a temperature of 145 ℃, then the 35 mesh aluminum screen was first leached with hot water at a temperature of 80 ℃, then dried in an oven at a temperature of 140 ℃ for 30 seconds, and then vulcanized in an oven at a temperature of 150 ℃ for 6 minutes to obtain a screen with a latex protective layer.
Example 5
The embodiment discloses a manufacturing method of a filter screen, which is different from the embodiment 3 in that:
before soaking the latex solution, firstly soaking a 35-mesh aluminum filter screen into a leveling solution at the temperature of 70 ℃, drying after soaking for 10s, wherein the leveling solution is prepared by mixing calcium sulfate, cocamidopropyl betaine and lauramide according to the weight ratio of 1: 1: 0.6 mass ratio.
Example 6
The embodiment discloses a manufacturing method of a filter screen, which is different from the embodiment 3 in that:
before soaking the latex solution, firstly soaking a 35-mesh aluminum filter screen into a leveling solution at the temperature of 80 ℃, drying after soaking for 15s, wherein the leveling solution is prepared by mixing calcium sulfate, cocamidopropyl betaine and lauramide according to the weight ratio of 1: 4: 1.4, and the weight ratio is compounded.
Example 7
The embodiment discloses a manufacturing method of a filter screen
Firstly, a 35-mesh aluminum filter screen is immersed into a leveling liquid at the temperature of 75 ℃, and is dried after being immersed for 15 seconds, wherein the leveling liquid is prepared by mixing calcium sulfate, cocamidopropyl betaine and lauramide in a proportion of 1: 2.5: 0.9 mass ratio.
Example 8
The embodiment discloses a manufacturing method of a filter screen
Firstly, a 35-mesh aluminum filter screen is immersed into a leveling liquid at the temperature of 75 ℃, and is dried after being immersed for 15 seconds, wherein the leveling liquid is prepared by mixing calcium sulfate, cocamidopropyl betaine and lauramide in a proportion of 1: 3: 1.2, and the components are compounded according to the mass ratio.
Application example
Application example 1
The application example discloses a groundwater pollution condition detection device, which comprises a collecting part 1 used for collecting groundwater and a detection part 2 fixedly connected to the upper surface of the collecting part 1. The collection portion 1 includes collection box 11, and the detection portion 2 is including detecting host computer 21 and detection probe rod 22, and detection probe rod 22 stretches into collection box 11 inside collection portion 1 in order to detect the water sample. The collecting part 1 further comprises a water pumping part 12 positioned inside the collecting box body 11 and a water taking part 13 connected with the water pumping part 12, the collecting box body 11 is divided into 3 spaces for respectively placing the water pumping parts 12, and the water taking part 13 is positioned outside the collecting box body 11.
The water intake part 13 comprises a telescopic pipe 131 and a filter screen 132 covering and fixed on the end part of the telescopic pipe 131 far away from the water intake part 12. Be equipped with the float rod 3 that detects the water level on the collection box 11, the face that the float rod 3 perpendicular to collection box 11 is close to detection portion 2, and the length that float rod 3 stretched into collection box 11 inside is less than the length of detecting probe rod 22 in collection box 11 inside.
During the use, stretch into the sample hole with water intaking portion 13, groundwater passes through in the filter screen 132 suction collection box 11, and the water of waiting in the collection box makes the floating rod 3 rise and stops drawing water when rocking, opens the 2 detection water samples of detection portion. In the process of detecting water in the space of this collection box 11, the remaining space can be sampled at the same time. After the previous space is detected, the next space can be detected, and the previous space continues to be sampled, so that circulation is realized, and the detection efficiency of the underground water pollution condition is greatly improved.
When the amount of the collected underground water touches the floating ball, the detection probe is described to be immersed in the water, the working state capable of detecting is achieved, the floating rod 3 floats upwards, and at the moment, the water pumping is stopped for detection. The floating rod 3 is arranged, so that the time for stopping pumping water can be conveniently judged, and the operation efficiency of the underground water pollution condition detection device is improved.
Application examples 2 to 8
The apparatus for detecting groundwater contamination in application example 1 is different in that the filters 132 used in application examples 2 to 8 are the filters 132 of examples 2 to 8, respectively.
Comparative example 1
A commercially available 35 mesh nylon filter screen.
Comparative example 2
A commercially available 35 mesh 304 stainless steel filter screen.
Experimental detection
Detection standard: the average value of the mesh must not exceed 5% of the standard specification requirement.
Calculating the formula: mesh mean W = L/n-d (L being the length of the n meshes and the respective wire diameters of n, in mm, d being the diameter of the filter wire).
A measuring tool: micrometer, vernier caliper, meter gauge.
TABLE 1
| Item | L/n（mm） | d/mm | W/mm (Standard value 0.500 mm) |
| Application example 1 | 0.758 | 0.271 | 0.487 |
| Application example 2 | 0.759 | 0.273 | 0.486 |
| Application example 3 | 0.76 | 0.271 | 0.489 |
| Application example 4 | 0.757 | 0.269 | 0.488 |
| Application example 5 | 0.765 | 0.270 | 0.495 |
| Application example 6 | 0.767 | 0.273 | 0.494 |
| Application example 7 | 0.769 | 0.271 | 0.498 |
| Application example 8 | 0.769 | 0.271 | 0.498 |
| Comparative example 1 | 0.772 | 0.273 | 0.499 |
| Comparative example 2 | 0.766 | 0.269 | 0.497 |
According to the comparison of the average values of the meshes of the comparative examples 1-2 and the application examples 1-4 in the table 1, the difference values of the comparative examples 1-2 and the standard values are smaller than those of the application examples 1-4, and therefore, the meshes of the filter screen manufactured in the mode that the metal wire is coated by the latex solution are not uniform, and the fact that the distribution of the latex solution on the metal filter screen is not uniform and even part of the meshes are blocked due to the fact that the leveling property of the latex solution is not stable after the metal filter screen is soaked in the latex solution is shown. According to the comparison of the average values of the meshes of the filter screens of application examples 1-4 and application examples 5-8 in table 1, the difference value between the average value of the meshes of application examples 5-8 and the standard value is smaller than that of comparative examples 1-4 and is close to the standard value, which indicates that after the leveling liquid (which is compounded by calcium sulfate, cocamidopropyl betaine and lauramide in a mass ratio of 1: 1-4: 0.6-1.4) is soaked, the emulsion can be uniformly distributed on the metal filter screen and is not easy to block the meshes of the filter screen, and a uniform protective layer is formed on the surface of the metal filter screen after vulcanization, so that the filter screen which is difficult to damage, uniform in filtering holes and soft is obtained.
The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.
Claims (9)
1. The utility model provides an underground water pollution condition detection device which characterized in that: the water-taking device comprises a collecting part (1) and a detecting part (2) fixedly connected to the collecting part (1), wherein the collecting part (1) comprises a collecting box body (11), a water-taking part (12) positioned in the collecting box body (11) and a water-taking part (13) connected with the water-taking part (12), and the collecting box body (11) is divided into a plurality of spaces for respectively placing the water-taking parts (12); the detection part (2) comprises a detection host (21) and a detection probe rod (22), the detection probe rod (22) extends into the collection box body (11), and the water taking part (13) comprises a telescopic pipe (131) and a filter screen (132) fixed on the end part of the telescopic pipe (131) far away from the water pumping part (12) in a covering mode.
2. The underground water pollution condition detection device according to claim 1, wherein: the water level detection device is characterized in that a floating rod (3) for detecting the water level is arranged on the collection box body (11), the floating rod (3) is perpendicular to the surface of the collection box body (11) close to the detection part (2), and the length of the floating rod (3) extending into the interior of the collection box body (11) is smaller than that of the detection probe rod (22) in the interior of the collection box body (11).
3. The underground water pollution condition detection device according to claim 1, wherein: the filter screen (132) is prepared by the following steps: immersing the metal filter screen into the latex solution with the temperature of 30-40 ℃ for 10-15s, then carrying out setting under the condition of the temperature of 135-145 ℃, then leaching the metal filter screen with hot water with the temperature of 70-80 ℃, then drying for 25-40s under the condition of the temperature of 120-140 ℃, and then vulcanizing for 3-10 minutes under the condition of the temperature of 145-155 ℃ to obtain the filter screen (132) with the latex protective layer.
4. The underground water pollution condition detection device according to claim 3, wherein: the setting temperature of the metal filter screen is 140-145 ℃, the leaching temperature is 70-75 ℃, the drying temperature is 130-135 ℃, the drying time is 30-40 seconds, the vulcanizing temperature is 148-152 ℃, and the vulcanizing time is 5-8 minutes.
5. The underground water pollution condition detection device according to claim 3, wherein: the emulsion is prepared from the following components in parts by mass:
water 300-;
40-50 parts of neoprene latex;
0.1-0.8 part of 2, 5-dimethyl-2, 5-di-tert-butyl hexane peroxide;
0.1-0.6 part of trithiocyanuric acid;
15-25 parts of potassium hydroxide;
0.3-0.8 part of sodium dithiocarbamate;
0.2-0.5 part of thiuram disulfide.
6. The underground water pollution condition detection device according to claim 3, wherein:
the emulsion comprises the following components in parts by weight:
300 portions of water and 350 portions of water;
40-45 parts of neoprene latex;
0.3-0.5 part of 2, 5-dimethyl-2, 5-di-tert-butyl hexane peroxide;
0.2-0.4 part of trithiocyanuric acid;
15-20 parts of potassium hydroxide;
0.5-0.8 part of sodium dithiocarbamate;
0.2-0.3 part of thiuram disulfide.
7. The underground water pollution condition detection device according to claim 3, wherein: before the metal filter screen (132) is soaked in the latex solution, the metal filter screen is firstly soaked in a leveling solution with the temperature of 70-80 ℃, and is dried after being soaked for 10-15s, wherein the leveling solution is prepared by mixing calcium sulfate, cocamidopropyl betaine and lauramide by the weight ratio of 1: (1-4): (0.6-1.4) in mass ratio.
8. The underground water pollution condition detection device according to claim 3, wherein: the leveling liquid is prepared from calcium sulfate, cocamidopropyl betaine and lauramide in a weight ratio of 1: (2.5-3): (0.9-1.2) in mass ratio.
9. A detection method for underground water pollution condition is characterized by comprising the following steps: the water taking part (13) of any one of the claims 1 to 2 is inserted into a sampling hole, underground water is pumped into the collecting box body (11) through the filter screen (132), water pumping is stopped when the floating rod (3) rises and shakes, and the detection part (2) is started to detect a water sample; in the process that underground water in the space of the collecting box body (11) is detected, the rest spaces can be sampled simultaneously; after the previous space is detected, the next space can be detected, and the previous space continues to be sampled, so as to circulate.
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