Device for detecting content of ethylene glycol butyl ether in water

Abstract

The utility model belongs to the technical field of detection, in particular relates to a device for detecting the content of ethylene glycol butyl ether in water, and aims to solve the problems that the filtering efficiency is low due to filtration under the action of natural gravity, and the operation difficulty and the error rate are increased due to repeated manual operation when the filtered water is distributed to different test tubes. According to the technical scheme, the device comprises a base, a supporting plate is fixedly arranged at the top of the base, and a support is fixedly arranged on one side of the supporting plate, negative pressure is formed in a collecting bottle by introducing a negative pressure assembly, and the filtering process of water in a filtering funnel is accelerated; filtered water is rapidly distributed into a plurality of test tubes through the flow distribution assembly, the error rate of manual repeated operation is reduced, stable placement of the test tubes is ensured through the design of the fixing assembly, meanwhile, the device can adapt to the test tubes of different specifications through adjusting bolts, and the universality and stability of the device are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of detection, in particular to a device for detecting the content of ethylene glycol butyl ether in water. Background Art

[0002] Traditional methods for detecting ethylene glycol butyl ether in water often rely on tedious sample pretreatment steps and complex experimental processes. Filtration is a key step in this process, whose purpose is to remove impurities and suspended matter in water samples to ensure the accuracy and reliability of water quality test results.

[0003] Traditional water filtration relies heavily on natural gravity, resulting in low filtration efficiency and difficulty meeting the needs of rapid testing of large quantities of samples. Furthermore, the distribution of filtered water into different test tubes for subsequent analysis usually requires repeated manual operations, increasing operational difficulty and error rates while also extending the experimental cycle. Therefore, we proposed a device for detecting the content of ethylene glycol butyl ether in water to address the above issues. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art, such as low filtration efficiency caused by filtration through natural gravity and the need for repeated manual operations when distributing the filtered water to different test tubes, which increases the difficulty of operation and the error rate. A device for detecting the content of ethylene glycol butyl ether in water is proposed.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A device for detecting the content of ethylene glycol butyl ether in water, comprising a test bench, a gas chromatograph provided on the top of the test bench, and a filtering device provided on the top of the test bench;

[0007] Wherein, the filtering device includes a base, which is located on the top of the test bench, a support plate fixedly provided on the top of the base, a bracket fixedly provided on one side of the support plate, a first fixing frame and a second fixing frame fixedly provided on one side of the bracket close to the support plate, and the first fixing frame is located directly above the second fixing frame, a filter funnel for filtering water is placed in the first fixing frame, a collection bottle for collecting filtered water is placed in the second fixing frame, a sealing cap for sealing is provided at the opening of the collection bottle, the bottom of the filter funnel passes through the sealing cap and extends to the interior of the collection bottle, and a plurality of test tubes for testing are provided on the top of the base;

[0008] The negative pressure component is arranged on the top of the base and is used to create negative pressure inside the collection bottle to accelerate the filtration process;

[0009] The diversion component is arranged on one side of the support plate and is used to flow the filtered water in the collection bottle into different test tubes;

[0010] The fixing component is arranged on one side of the support plate and is used to fix the test tube.

[0011] In one possible design, the negative pressure component includes a vacuum pump, which is fixedly arranged on the top of the base. A hose is fixedly arranged at the air suction port of the vacuum pump, one end of which is connected to the interior of the collection bottle, and the air in the collection bottle is extracted by the vacuum pump.

[0012] In one possible design, the diversion assembly includes a diversion pipe, which is fixedly arranged on one side of the support plate. The water inlet of the diversion pipe is connected to the bottom of the collection bottle through a conduit. The bottom of the diversion pipe is connected to multiple water outlet pipes at equal intervals. Valves are provided on the multiple water outlet pipes. The water quality is quickly controlled to flow into different test tubes through the set diversion pipe.

[0013] In a possible design, the fixed assembly includes a moving block, and two limit rods are symmetrically fixed on one side of the support plate, the moving block passes through the two limit rods and is slidably connected to the two limit rods, and a plurality of placement holes corresponding to the water outlet pipes are opened on the limit rods, and a plurality of test tubes are located in the corresponding placement holes, and two limit plates are symmetrically fixed on the bottom of the moving block, and the two limit plates pass through the same moving plate for sliding connection, and the tops of the moving plates are in conflict with the bottoms of a plurality of test tubes, and the test tubes can be pulled out from under the water outlet pipe by sliding the moving block, which is convenient for placing and removing the test tubes. At the same time, the placement holes provided on the moving block limit the position of the test tubes to prevent the test tubes from deviating when receiving water and spilling outside.

[0014] In a possible design, bolts are threadedly connected on both sides of the movable plate, and one end of the two bolts respectively contacts one side of the corresponding limit plate. The bolts can not only adjust the height of the test tube, but also adapt to test tubes of different specifications.

[0015] In one possible design, two magnets are symmetrically provided on one side of the moving block close to the support plate, and an iron sheet corresponding to the magnet is provided on one side of the support plate. The magnet and the corresponding iron sheet are attracted to each other, and the moving block is fixed by the attraction between the magnet and the iron sheet to prevent the moving block from sliding and affecting the water quality flowing into the test tube.

[0016] In this application, the filter cotton is first placed in the filter funnel in the filtration device, and then the water quality sample to be tested is poured into the filter funnel, and then the vacuum pump in the negative pressure component is started. Because the hose connected to its upper air suction port is connected to the inside of the collection bottle, the air in the collection bottle is extracted, and a negative pressure environment is formed in the collection bottle, thereby accelerating the filtration process of the water quality through the filter funnel, and the filtrate enters the collection bottle.

[0017] When the water in the collection bottle is filtered, turn off the vacuum pump, operate the diversion pipe in the diversion assembly, open the corresponding valve, and allow the water to flow into the test tube fixed in the fixed assembly through the outlet pipe.

[0018] During the process of placing the test tube, the moving block sliding on the two limit rods is moved away from the shunt tube, so that the test tube is conveniently placed in the placement hole on the moving block. At the same time, the limit plate on the moving block cooperates with the moving plate and is fixed to the moving plate by bolts, so as to adjust the height of the test tube to adapt to test tubes of different specifications. Then the moving block is pushed toward the shunt tube so that the moving block is located below the shunt tube. At this time, the magnet on the moving block is attracted to the iron sheet on the support plate to fix the moving block, ensuring that the moving block will not be displaced when water flows into the test tube.

[0019] After all test tubes have collected water samples, the mobile block is pulled out to facilitate the removal of the test tubes. Then, appropriate test conditions are set for the gas chromatograph, including adjusting parameters such as the vaporizer temperature, detector temperature, chromatographic column temperature, and injection volume. For example, the vaporizer and detector are usually set at 100°C, the chromatographic column temperature is set to 40°C, and the injection volume is usually 0.2ul. The prepared sample is injected into the gas chromatograph through a micro-syringe. The sample is carried into the chromatographic column by the carrier gas and separated by the capillary vaporizer injection system. In the chromatographic column, ethylene glycol butyl ether and other components are separated and then detected by a hydrogen flame ionization detector. The chromatogram is recorded and analyzed using a chromatography workstation, and the content of ethylene glycol butyl ether is calculated by the area normalization method.

[0020] Beneficial effects:

[0021] In the present invention, the device for detecting the content of ethylene glycol butyl ether in water introduces a negative pressure component to form a negative pressure inside the collecting bottle, thereby accelerating the filtration process of the water in the filter funnel and improving the detection efficiency.

[0022] In the present invention, the device for detecting the content of ethylene glycol butyl ether in water uses a diversion component to quickly distribute the filtered water into multiple test tubes, thereby reducing the complexity and error rate of manual repetitive operations and accelerating the experimental process.

[0023] In the utility model, the device for detecting the content of ethylene glycol butyl ether in water quality has a fixed component design that ensures the stable placement of the test tube, and can adapt to test tubes of different specifications by adjusting the bolts, thereby improving the versatility and stability of the device.

[0024] In the utility model, a negative pressure component is introduced to form a negative pressure inside the collection bottle, thereby accelerating the filtration process of the water in the filter funnel. The diversion component quickly distributes the filtered water to multiple test tubes, reducing the error rate of manual repeated operations. The design of the fixed component ensures the stable placement of the test tubes. At the same time, the bolts can be adjusted to adapt to test tubes of different specifications, thereby improving the versatility and stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a three-dimensional structural diagram of a filtering device for detecting the content of ethylene glycol butyl ether in water, proposed by the utility model;

[0026] Figure 2 This is a schematic diagram of the three-dimensional structure from another perspective of a filtering device for detecting the content of ethylene glycol butyl ether in water, proposed by the present invention;

[0027] Figure 3 This is a schematic diagram of the three-dimensional structure of a moving block of a device for detecting the content of ethylene glycol butyl ether in water, proposed by the present invention;

[0028] Figure 4 This is a schematic diagram of the three-dimensional structure of a device for detecting the content of ethylene glycol butyl ether in water, proposed by the utility model.

[0029] In the figure: 1. base; 2. support plate; 3. bracket; 4. first fixing frame; 5. second fixing frame; 6. filter funnel; 7. sealing cover; 8. collecting bottle; 9. diverter pipe; 10. outlet pipe; 11. valve; 12. limit rod; 13. moving block; 14. vacuum pump; 15. hose; 16. limit plate; 17. moving plate; 18. bolt; 19. magnet; 20. test tube; 21. gas chromatograph; 22. test bench; 23. filter device. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0031] Example 1

[0032] Reference Figure 1-4A detection device includes a test bench 22, a meteorological chromatograph 21, a filter device 23, and a matching negative pressure component, a diversion component, and a fixed component. The test bench 22 serves as a supporting platform, on which the meteorological chromatograph 21 is installed for subsequent analysis. At the same time, a filter device 23 is provided on the top to achieve water quality pretreatment.

[0033] Among them, the filtering device 23 includes a base 1, which is firmly fixed on the top of the test bench 22, and is provided with a support plate 2, and a bracket 3 is fixed on one side of the support plate 2. The bracket 3 is respectively installed with a first fixing frame 4 and a second fixing frame 5, which are arranged up and down. The first fixing frame 4 is used to fix the filter funnel 6, and the second fixing frame 5 is used to support the collecting bottle 8. The filter funnel 6 is placed in the first fixing frame 4, and its bottom passes through the sealing cover 7 and extends into the interior of the collecting bottle 8. The sealing cover 7 tightly covers the opening of the collecting bottle 8 to ensure the sealing during the filtration process. A plurality of test tubes 20 for subsequent tests are also provided on the top of the base 1. These test tubes 20 are fixed and diverted by specific components.

[0034] In order to accelerate the filtration process, a negative pressure component is provided on the top of the base 1. Specifically, the negative pressure component is mainly composed of a vacuum pump 14 and a hose 15. The vacuum pump 14 is fixed on the top of the base 1, and its suction port is connected to the inside of the collection bottle 8 through the hose 15. When the vacuum pump 14 is started, the air in the collection bottle 8 can be extracted, thereby forming a negative pressure environment in the collection bottle 8, thereby accelerating the filtration process of the water quality.

[0035] In order to distribute the filtered water to different test tubes 20 for further testing, a diversion assembly is set on one side of the support plate 2. The diversion assembly consists of a diversion pipe 9, a conduit, an outlet pipe 10 and a valve 11. The diversion pipe 9 is fixed on one side of the support plate 2, and its water inlet is connected to the bottom of the collection bottle 8 through a conduit. A plurality of outlet pipes 10 are arranged at equal intervals at the bottom of the diversion pipe 9, and each outlet pipe 10 is installed with a valve 11 to control the flow of water to different test tubes 20.

[0036] In order to ensure the stability and accuracy of the test tube 20 during the water collection process, a fixing component is also designed, which mainly includes a moving block 13, a limiting rod 12, a placement hole, a limiting plate 16, a moving plate 17 and a bolt 18. The two limiting rods 12 are symmetrically fixed on one side of the support plate 2. The moving block 13 passes through and is slidably connected between the two limiting rods 12. The limiting rod 12 is provided with a plurality of placement holes corresponding to the position of the water outlet pipe 10 for placing the test tube 20. Two limiting plates 16 are fixed to the bottom of the moving block 13, and the moving plate 17 passes through and is slidably connected between the two limiting plates 16. The top of the moving plate 17 conflicts with the bottom of multiple test tubes 20. By adjusting the position of the moving block 13, the test tube 20 can be easily pulled out or inserted from under the water outlet pipe 10.

[0037] The present application can be used in the technical field of ethylene glycol butyl ether content detection, and can also be used in other fields applicable to the present application.

[0038] Example 2

[0039] refer to Figure 1-3 , improved on the basis of Example 1: a device for detecting the content of ethylene glycol butyl ether in water quality, which is applied to the technical field of ethylene glycol butyl ether content detection. In addition, bolts 18 are threadedly connected to both sides of the movable plate 17. By rotating the bolts 18, the height of the movable plate 17 can be adjusted to accommodate test tubes 20 of different specifications and ensure the stability of the test tubes 20 during the water collection process.

[0040] The present invention also sets two magnets 19 on the side of the moving block 13 close to the support plate 2, and sets an iron sheet at the corresponding position of the support plate 2. When the moving block 13 needs to be fixed, it is only necessary to attract the magnet 19 and the iron sheet, which is simple, fast, stable and reliable.

[0041] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A device for detecting the content of ethylene glycol butyl ether in water, comprising a test bench (22), a gas chromatograph (21) being provided on the top of the test bench (22), characterized in that: A filtering device (23) is provided on the top of the test bench (22); Wherein, the filtering device (23) comprises a base (1), the base (1) is located on the top of the test bench (22), a support plate (2) is fixedly provided on the top of the base (1), a bracket (3) is fixedly provided on one side of the support plate (2), a first fixing frame (4) and a second fixing frame (5) are fixedly provided on the side of the bracket (3) close to the support plate (2), and the first fixing frame (4) is located directly above the second fixing frame (5), a filter funnel (6) for filtering water is placed in the first fixing frame (4), a collection bottle (8) for collecting filtered water is placed in the second fixing frame (5), a sealing cover (7) for sealing is provided at the opening of the collection bottle (8), the bottom of the filter funnel (6) passes through the sealing cover (7) and extends to the inside of the collection bottle (8), and a plurality of test tubes (20) for testing are provided on the top of the base (1); A negative pressure component is provided on the top of the base (1) and is used to form a negative pressure inside the collecting bottle (8) to accelerate the filtration process; A diversion assembly is provided on one side of the support plate (2) and is used to flow the filtered water in the collection bottle (8) into different test tubes (20); A fixing assembly is provided on one side of the support plate (2) and is used to fix the test tube (20).

2. A device for detecting the content of ethylene glycol butyl ether in water according to claim 1, characterized in that: The negative pressure component comprises a vacuum pump (14), which is fixedly arranged on the top of the base (1); a hose (15) is fixedly arranged at the air extraction port of the vacuum pump (14); one end of the hose (15) is interconnected with the interior of the collecting bottle (8), and the air in the collecting bottle (8) is extracted through the vacuum pump (14).

3. A device for detecting the content of ethylene glycol butyl ether in water according to claim 1, characterized in that: The diversion assembly comprises a diversion pipe (9), which is fixedly arranged on one side of the support plate (2); the water inlet of the diversion pipe (9) and the bottom of the collection bottle (8) are connected to each other through a conduit; the bottom of the diversion pipe (9) is connected to a plurality of water outlet pipes (10) at equal intervals; valves (11) are provided on the plurality of water outlet pipes (10); and the water quality is quickly controlled to flow into different test tubes (20) through the provided diversion pipe (9).

4. A device for detecting the content of ethylene glycol butyl ether in water according to claim 3, characterized in that: The fixing assembly comprises a moving block (13), one side of the support plate (2) is symmetrically fixed with two limiting rods (12), the moving block (13) passes through the two limiting rods (12) and is slidably connected to the two limiting rods (12), the limiting rods (12) are provided with a plurality of placement holes corresponding to the water outlet pipe (10), and the plurality of test tubes (20) are located in the corresponding placement holes, the bottom of the moving block (13) is symmetrically fixed with two limiting plates (16), the two limiting plates (16) pass through and are slidably connected to the same moving plate (17), the tops of the moving plate (17) are in conflict with the bottoms of the plurality of test tubes (20), the sliding moving block (13) can make the test tubes (20) be drawn out from under the water outlet pipe (10), so as to facilitate the placement and removal of the test tubes (20), and at the same time, the placement holes provided on the moving block (13) limit the position of the test tubes (20), so as to prevent the test tubes (20) from being deviated when receiving water and being spilled outside.

5. A device for detecting the content of ethylene glycol butyl ether in water according to claim 4, characterized in that: Bolts (18) are threadedly connected to both sides of the movable plate (17), and one end of the two bolts (18) respectively contacts one side of the corresponding limiting plate (16). The bolts (18) can not only adjust the height of the test tube (20), but also adapt to test tubes (20) of different specifications.

6. A device for detecting the content of ethylene glycol butyl ether in water according to claim 4, characterized in that: Two magnets (19) are symmetrically arranged on one side of the moving block (13) close to the support plate (2), and an iron sheet corresponding to the magnet (19) is arranged on one side of the support plate (2). The magnet (19) and the corresponding iron sheet are attracted to each other, and the moving block (13) is fixed by the attraction between the magnet (19) and the iron sheet, thereby preventing the moving block (13) from sliding and affecting the water quality from flowing into the test tube (20).

Images