Portable detection alarm for odor substances in water

Abstract

The utility model relates to a portable detection alarm for smelly substances in water, which comprises a shell and a detection device, a heating box is arranged in the shell, a placing groove is arranged in the middle of the heating box, a collecting bottle is arranged in the placing groove, a rubber sealing plug is arranged at a bottle opening of the collecting bottle, and a protective part is mounted on the outer side of the bottle opening of the collecting bottle. A plastic connecting piece is installed on the inner side of the protection piece, and the protection piece is connected with a pressing plate through the plastic connecting piece. The device is simple in structure, compact in design, small in size, portable, simple, suitable for rapidly determining the total amount of odor substances in a water sample on a sampling site, short in determination time and high in accuracy.

Description

Technical Field

[0001] The utility model belongs to the technical field of detecting odorous substances in water, and more specifically, particularly relates to a portable odorous substance detection alarm in water. Background Art

[0002] Some algae and fungi in natural water bodies continuously secrete and release various secondary metabolites with peculiar smells, which cause the water to produce earthy, musty, tobacco and other peculiar smells, affecting the safety of water quality. 2-Methylisoborneol and geosmin are the most common substances that cause earthy and musty smells in water bodies, and they mainly come from metabolites of actinomycetes, bacteria and cyanobacteria such as diatoms. β-Cyclocitral and β-ionone are the oxidation products of β-carotene in spherical cyanobacteria, especially algae such as Microcystis, which cause the water to produce peculiar smells such as tobacco and violet fragrance. Humans have a very low olfactory threshold for these odor substances, and odor substances at the ng / L level in water bodies can cause odors in water bodies.

[0003] The odor substances in water can be detected by headspace solid phase microextraction-gas chromatography mass spectrometry, which is mature, stable, highly sensitive and accurate. However, the instrument used in this method is relatively expensive, and standard substances need to be used to quantify each odor substance separately during detection. It has the disadvantages of being unable to measure on-site, being time-consuming, and not conducive to real-time detection of the total amount of odor substances. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a portable water odor substance detection alarm to solve the problem that odor substances in water bodies cannot be measured on site and it takes a long time.

[0005] The utility model adopts the following technical solutions:

[0006] A portable water odor substance detection alarm comprises a shell and a detection device, wherein a heating box is arranged inside the shell, a placement groove is opened in the middle of the heating box, a collecting bottle is arranged inside the placement groove, a rubber sealing plug is arranged at the bottle mouth of the collecting bottle, a protective piece is installed on the outer side of the bottle mouth of the collecting bottle, a plastic connecting piece is installed on the inner side of the protective piece, the protective piece is connected to a pressing plate via the plastic connecting piece, a steel thorn piece is arranged on the inner side of the pressing plate, and an air outlet pipe is connected to the steel thorn piece.

[0007] Furthermore, a spike portion is provided at the lower portion of the steel spike piece, an air inlet hole is opened on the side of the spike portion, and the spike portion is located at the inner upper portion of the rubber sealing plug.

[0008] Furthermore, there are a plurality of air inlet holes, which are opened in a circle, and there are a plurality of plastic connectors, which are located in a circle on the inner wall of the protective element.

[0009] Furthermore, a magnetic seat is arranged at the bottom of the collecting bottle, and a magnetic stirrer is arranged inside the collecting bottle.

[0010] Furthermore, a connection block is installed at one end of the air outlet pipe, the air outlet pipe is connected to a drying pipe via the connection block, and one end of the drying pipe is connected to the detection device.

[0011] Furthermore, a control knob is provided on the side of the shell, and a water inlet is provided on the heating box.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] In the utility model, a magnetic stirrer is placed in the collection bottle, sodium chloride is added, and the bottle is tightly sealed with a rubber plug, and the volatility of the odorous substances in the water is increased by the salting-out effect. After the collection bottle is placed in a water bath in a heating box for heating, the pressing plate is pressed down with force to break the plastic connector on the side of the pressing plate. At this time, the spiked part of the lower part of the steel spike gradually approaches the rubber plug, and then the rubber plug is punctured, and the gas inside the collection bottle enters the inside of the air outlet pipe through the air inlet hole, and the air outlet pipe enters the detection device after passing through the drying tube. The device is small in size, portable and simple, and improves the overall practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is an overall assembly schematic diagram of the utility model.

[0015] Figure 2 It is a partial internal section schematic diagram of the utility model.

[0016] Figure 3 It is a partial inner side schematic diagram of the utility model.

[0017] Figure 4 It is a partial assembly schematic diagram of the utility model.

[0018] Description of reference numerals:

[0019] 1. Shell; 2. Detection device; 3. Heating box; 4. Placement tank; 5. Collecting bottle; 6. Magnetic stirring bar; 7. Magnetic seat; 8. Rubber sealing plug; 9. Protective part; 10. Observation port; 11. Plastic connecting part; 12. Pressing plate; 13. Steel thorn piece; 14. Exhaust pipe; 15. Connecting block; 16. Drying tube; 17. Control knob; 18. Spike part; 19. Air inlet. DETAILED DESCRIPTION

[0020] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0021] As attached Figure 1 To Attachment Figure 4 As shown:

[0022] A portable water odor substance detection alarm comprises a shell 1 and a detection device 2. A heating box 3 is arranged inside the shell 1. A placement slot 4 is provided in the middle of the heating box 3. A collecting bottle 5 is arranged inside the placement slot 4. A rubber sealing plug 8 is provided at the mouth of the collecting bottle 5. A protective member 9 is installed on the outer side of the mouth of the collecting bottle 5. A plastic connecting member 11 is installed on the inner side of the protective member 9. A pressing plate 12 is connected to the protective member 9 through the plastic connecting member 11. A steel thorn member 13 is arranged on the inner side of the pressing plate 12. An air outlet pipe 14 is connected to the steel thorn member 13. A spike portion 18 is arranged at the lower part of the steel thorn member 13. An inlet port 18 is provided on the side of the spike portion 18. The air hole 19 and the spike portion 18 are located in the inner upper part of the rubber sealing plug 8. There are multiple air inlet holes 19, which are opened in a circle. There are multiple plastic connectors 11, which are located in a circle on the inner wall of the protective member 9. Press the pressing plate 12 downward with force to break the plastic connector 11 on the side of the pressing plate 12. At this time, the spike portion 18 at the lower part of the steel spike 13 gradually approaches the rubber sealing plug 8, and then punctures the rubber sealing plug 8. The steel spike 13 can be fixed to the upper part of the rubber sealing plug 8 through the plastic connector 11. At the same time, the protective member 9 and the collecting bottle 5 can be detachably connected, which is convenient for collection by the collecting bottle 5 and convenient for installation of the rubber sealing plug 8.

[0023] Among them, a magnetic base 7 is arranged at the lower part of the collecting bottle 5, and a magnetic stirrer 6 is arranged inside the collecting bottle 5. The magnetic stirrer 6 is a magnetic rod. The basic principle of magnetic stirring is to utilize the principle of like charges repel each other and opposite charges attract each other in the magnetic field. The magnetic base 7 is used to push the magnetic stirrer 6 placed in the container to perform circular rotation to achieve the purpose of stirring the liquid. Through the cooperation of the magnetic base 7 and the magnetic stirrer 6, the internal heating can be made more comprehensive, thereby improving the overall practicality.

[0024] Among them, a connecting block 15 is installed at one end of the air outlet pipe 14, and the air outlet pipe 14 is connected to a drying tube 16 through the connecting block 15. One end of the drying tube 16 is connected to the detection device 2. The gas inside the collecting bottle 5 enters the interior of the air outlet pipe 14 through the air inlet hole 19. After passing through the drying tube 16, the air outlet pipe 14 enters the detection device 2 and is detected by the detection device 2.

[0025] Among them, a control knob 17 is provided on the side of the shell 1, a water inlet is provided on the heating box 3, and an observation port 10 is opened on the side of the protective member 9, so that the depth of the steel thorn member 13 inserted into the upper part of the collecting bottle 5 can be observed through the observation port 10, which is convenient for adjusting the position.

[0026] Specific usage and function:

[0027] First, collect 1L of water sample into the collection bottle 5, place the magnetic stirrer 6, add 160g of sodium chloride, and plug it with a rubber seal 8 to increase the volatility of the odorous substances by salting out. Place the collection bottle 5 in the heating box 3 and heat it in a water bath for 30 minutes. The heating box 3 is set at 60°C and kept at a constant temperature. After 30 minutes, press the pressing plate 12 downward to break the plastic connector 11 on the side of the pressing plate 12. At this time, the spike 18 at the bottom of the steel spike 13 gradually approaches the rubber seal 8, and then the rubber seal 8 is punctured. The gas inside the collection bottle 5 enters the inside of the air outlet pipe 14 through the air inlet 19, and the air outlet pipe 14 enters the detection device 2 after passing through the drying tube 16.

[0028] The detection device 2 includes a sampling module, a power module, a display alarm module, a storage module, and a detection module. The sampling module can realize the control of flow rate, pressure and sampling time, and the detection module is used to detect odor substances. The detection module uses a wet chemical method to determine the concentration of odor substances such as alcohols, aldehydes, ketones, etc. in water. The principle is that the vapor of the odor substance is oxidized by an acidic potassium dichromate solution, and the concentration of the odor substance is inferred according to the time of fading of the solution. The vapor of odor substances such as alcohols, aldehydes, ketones, etc. is placed in a detection bottle and oxidized with a mixture of potassium dichromate and sulfuric acid. The mixture in the bottle will change from orange to green, and the resistance caused by the chemical reaction will change. The storage module is used to store multiple detection results, and the concentration of the odor substance in the gas obtained by the determination is converted into the concentration of the odor substance in the water sample and displayed in the display alarm module. The above detection method is a prior art and is not shown in the figure.

Claims

1. A portable water odor substance detection alarm, comprising a housing (1) and a detection device (2), characterized in that: A heating box (3) is arranged inside the housing (1), a placement groove (4) is provided in the middle of the heating box (3), a collecting bottle (5) is arranged inside the placement groove (4), a rubber sealing plug (8) is arranged at the bottle mouth of the collecting bottle (5), a protective member (9) is installed on the outer side of the bottle mouth of the collecting bottle (5), a plastic connecting member (11) is installed on the inner side of the protective member (9), the protective member (9) is connected to a pressing plate (12) via the plastic connecting member (11), a steel thorn member (13) is arranged on the inner side of the pressing plate (12), and an air outlet pipe (14) is connected to the steel thorn member (13).

2. The portable water odor substance detection alarm as claimed in claim 1, characterized in that: A spike portion (18) is provided at the lower portion of the steel spike piece (13), an air inlet hole (19) is provided on the side of the spike portion (18), and the spike portion (18) is located at the inner upper portion of the rubber sealing plug (8).

3. The portable water odor substance detection alarm as claimed in claim 2, characterized in that: The air inlet holes (19) are multiple in number and are respectively opened in a circular pattern. The plastic connecting parts (11) are multiple in number and are respectively located on the inner wall of the protective part (9) and are arranged in a circular pattern.

4. The portable water odor substance detection alarm according to claim 1, characterized in that: A magnetic seat (7) is provided at the bottom of the collecting bottle (5), and a magnetic stirring bar (6) is provided inside the collecting bottle (5).

5. The portable water odor substance detection alarm as claimed in claim 1, characterized in that: A connection block (15) is installed at one end of the air outlet pipe (14), the air outlet pipe (14) is connected to a drying pipe (16) via the connection block (15), and one end of the drying pipe (16) is connected to the detection device (2).

6. The portable water odor substance detection alarm as claimed in claim 1, characterized in that: A control knob (17) is provided on the side of the housing (1), a water inlet is provided on the heating box (3), and an observation port (10) is provided on the side of the protective member (9).

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