An oil fume collecting and detecting system

Abstract

The utility model discloses a kind of oil fume collection detection systems, it includes: integrated board, activated carbon suction tube and filter box, the activated carbon suction tube both sides are fixedly connected with sealing tube, two The inside of two sealing tubes is rotatably connected with two rotating columns, four The side of rotating column is fixedly connected with sealing plate, relative two The end of sealing plate far from rotating column is connected, the rotating column upper end extends to sealing tube outside, the rotating column upper end is fixed bolt with screw thread connection, The upper surface of sealing tube is provided with insertion hole, the lower end of fixed bolt is inserted with insertion hole inside, the side of filter box is embedded with mounting plate, The side of mounting plate is fixedly connected with glass fiber filter membrane, the inside of mounting plate is slidably connected with two limit rods, two The end of limit rod is inserted into filter box inside, it is closed to sealing tube inside conveniently, can prevent activated carbon suction tube inside sample from external pollution and facilitate staff to replace inside glass fiber filter membrane.

Description

Technical Field

[0001] This utility model relates to the field of oil fume detection technology, and in particular to an oil fume collection and detection system. Background Technology

[0002] Cooking oil is an important ingredient in cooking. When cooking oil is heated, the volatile organic compounds in the oil will evaporate, producing fumes. These fumes may contain aldehydes, so it is necessary to test the fumes to study the factors that cause them.

[0003] Existing oil fume collection and detection systems require staff to remove the activated carbon suction tube for testing after sampling. During this process, other impurities may enter, which can easily contaminate the internal sample and make it inconvenient for staff to replace the internal glass fiber filter membrane, resulting in poor convenience. Utility Model Content

[0004] The purpose of this invention is to provide an oil fume collection and detection system that solves the problems of the activated carbon suction tube being easily contaminated by external sources and the inconvenience of staff replacing the glass fiber filter membrane, resulting in poor convenience.

[0005] To achieve the above objectives, an oil fume collection and detection system is provided, comprising: an integrated plate, an activated carbon suction tube, and a filter box. Sealing tubes are fixedly connected to both sides of the activated carbon suction tube. Two rotating columns are rotatably connected inside each of the two sealing tubes. Sealing plates are fixedly connected to the sides of the four rotating columns. The ends of the two sealing plates furthest from the rotating columns are fitted together. The upper ends of the rotating columns extend to the outside of the sealing tubes. Fixed bolts are threadedly connected to the upper ends of the rotating columns. Insertion holes are formed on the upper surface of the sealing tubes, and the lower ends of the fixed bolts are inserted into the insertion holes to facilitate sealing the inside of the sealing tubes and prevent external contamination of the samples inside the activated carbon suction tubes.

[0006] The filter box is fitted with a mounting plate on its side, and a glass fiber filter membrane is fixedly connected to the side of the mounting plate. Two limiting rods are slidably connected inside the mounting plate, with one end of each limiting rod inserted into the filter box. A pushing block is slidably connected between the two limiting rods. A rotating bolt is threaded inside the mounting plate, and the lower end of the rotating bolt is rotatably connected to the upper surface of the pushing block. A sliding column is fixedly connected to the upper end of each limiting rod, and the upper end of the sliding column extends to the outside of the mounting plate, facilitating the replacement of the internal glass fiber filter membrane by the operator.

[0007] According to the oil fume collection and detection system, an oil bath is fixedly connected to the upper surface of the integrated plate, a sealing cover is attached to the upper surface of the oil bath, a reaction bottle is placed inside the oil bath, and a sealing plug is inserted into the upper end of the reaction bottle to facilitate heating of the edible oil inside the reaction bottle.

[0008] According to the oil fume collection and detection system, an air tank is fixedly connected to the upper surface of the integrated plate, and a first air supply pipe is fixedly connected to the air supply end of the air tank. One end of the first air supply pipe is inserted into the inside of the sealing plug to facilitate the supply of air into the reaction bottle and facilitate the flow of flue gas.

[0009] According to the oil fume collection and detection system, a second air supply pipe is fixedly connected inside the sealing plug, and a first supply branch pipe and a second supply branch pipe are fixedly connected to the side surface of the second air supply pipe. The end of the first supply branch pipe away from the second air supply pipe is connected to a flange at one end of the sealing pipe to facilitate air supply.

[0010] According to the aforementioned oil fume collection and detection system, a first vacuum collection pump is fixedly connected to the upper surface of the integrated plate. The output end of the first vacuum collection pump is connected to the side flange of another sealing pipe through a pipe. The first vacuum collection pump can provide the power for the flow of smoke.

[0011] According to the oil fume collection and detection system, the end of the second conveying branch pipe away from the second air supply pipe is fixedly connected to the third air supply pipe, and the lower surface of the third air supply pipe is connected to the upper surface of the filter box through a pipe to facilitate air supply.

[0012] According to the oil fume collection and detection system, the upper surface of the integrated plate is connected to a collection tank via a support base, and an extraction column is threadedly connected to the side of the collection tank, which facilitates the adsorption of substances inside the flue gas.

[0013] According to the aforementioned oil fume collection and detection system, the lower surface of the filter box is detachably connected to a DNPH housing via a pipe. A DNPH column is provided inside the DNPH housing. The upper surface of the integrated plate is connected to a second vacuum collection pump via a support base. The lower surface of the DNPH housing is connected to the output flange of the second vacuum collection pump via a pipe. The DNPH column facilitates the adsorption of substances in the flue gas.

[0014] The above-mentioned solution has the following beneficial effects:

[0015] 1. By rotating the fixing bolt, the limiting position of the fixing bolt on the rotating column is released, making it convenient for the staff to rotate the rotating column. The rotating column can drive the sealing plate to rotate synchronously. By inserting the fixing bolt into the insertion hole, it is convenient to fix the sealing plate in the open or closed state, and to seal the inside of the sealing tube, which can prevent the sample inside the activated carbon pipette from being contaminated by the outside.

[0016] 2. By rotating the bolt, the push block can be easily moved up and down. The up and down movement of the push block facilitates the insertion of the limit rod into the filter box. The sliding column allows the operator to easily slide the limit rod, making it convenient to replace the internal glass fiber filter membrane and increasing the ease of use of the device.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0019] Figure 1 This is a perspective view of an oil fume collection and detection system according to the present invention;

[0020] Figure 2 This is a structural diagram of the filter box of an oil fume collection and detection system according to this utility model;

[0021] Figure 3 This is a cross-sectional view of an oil bath in an oil fume collection and detection system according to this utility model.

[0022] Figure 4 This is a top sectional view of the sealing tube of the oil fume collection and detection system of this utility model;

[0023] Figure 5 This utility model relates to an oil fume collection and detection system. Figure 1 Enlarged view of point A in the middle;

[0024] Figure 6 This utility model relates to an oil fume collection and detection system. Figure 1 Enlarged view of point B in the middle;

[0025] Figure 7 This utility model relates to an oil fume collection and detection system. Figure 1 Enlarged view of point C in the middle;

[0026] Figure 8 This is a flowchart of an oil fume collection and detection system according to the present invention.

[0027] Legend:

[0028] 1. Integrated plate; 2. Oil bath; 3. Air tank; 4. First gas delivery pipe; 5. Sealing cover plate; 6. Sealing plug; 7. Second gas delivery pipe; 8. Activated carbon suction tube; 9. First vacuum collection pump; 10. First delivery branch pipe; 11. Second delivery branch pipe; 12. Filter box; 13. Centralized tank; 14. Third gas delivery pipe; 15. Second vacuum collection pump; 16. Mounting plate; 17. Reaction flask; 18. Rotating bolt; 19. DNPH outer shell; 20. Rotating column; 21. Fixing bolt; 22. Insertion hole; 23. Sealing tube; 24. Sliding column; 25. Pushing block; 26. Limiting rod; 27. Glass fiber filter membrane; 28. Sealing plate; 29. ​​Extraction column. Detailed Implementation

[0029] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0030] Reference Figure 1-8 This utility model provides an oil fume collection and detection system, comprising: an integrated plate 1, an activated carbon suction tube 8, and a filter box 12. Sealing tubes 23 are fixedly connected to both sides of the activated carbon suction tube 8. Two rotating columns 20 are rotatably connected inside each of the two sealing tubes 23. The rotating columns 20 drive the sealing plates 28 to rotate synchronously. Sealing plates 28 are fixedly connected to the sides of all four rotating columns 20. The sealing plates 28 seal the sealing tubes 23. The ends of the two sealing plates 28 furthest from the rotating columns 20 are fitted together. The upper end of the rotating column 20 extends to the outside of the sealing tube 23. A fixing bolt 21 is threadedly connected to the upper end of the rotating column 20. The fixing bolt 21 on the upper part of the T-shaped rotating column 20 is used to fix the rotating column 20. An insertion hole 22 is opened on the upper surface of the sealing tube 23, and the lower end of the fixing bolt 21 is inserted into the insertion hole 22.

[0031] A mounting plate 16 is fitted into the side of the filter box 12. A glass fiber filter membrane 27 is fixedly connected to the side of the mounting plate 16 for filtration. Two limiting rods 26 are slidably connected inside the mounting plate 16 to fix the mounting plate 16. One end of each limiting rod 26 is inserted into the filter box 12. A pushing block 25 is slidably connected between the two limiting rods 26. The inclined surface of the pushing block 25 pushes the limiting rods 26 to move. A rotating bolt 18 is threaded inside the mounting plate 16 to drive the pushing block 25 to move. The lower end of the rotating bolt 18 is rotatably connected to the upper surface of the pushing block 25. A sliding column 24 is fixedly connected to the upper end of each of the two limiting rods 26 to drive the limiting rods 26 to move. The upper end of the sliding column 24 extends to the outside of the mounting plate 16.

[0032] An oil bath 2 is fixedly connected to the upper surface of the integrated plate 1. A sealing cover 5 is attached to the upper surface of the oil bath 2. A reaction bottle 17 made of glass is placed inside the oil bath 2. A sealing plug 6 is inserted into the upper end of the reaction bottle 17. Oil for heating is added to the oil bath 2, and then the oil bath 2 is used to heat the edible oil inside the reaction bottle 17.

[0033] An air tank 3 is fixedly connected to the upper surface of the integrated plate 1. The air supply end of the air tank 3 is fixedly connected to the first air supply pipe 4. One end of the first air supply pipe 4 is inserted into the sealing plug 6. Air is stored inside the air tank 3 and input through the first air supply pipe 4.

[0034] The sealing plug 6 is internally fixedly connected to the second gas supply pipe 7. The side surface of the second gas supply pipe 7 is fixedly connected to the first supply branch pipe 10 and the second supply branch pipe 11. The end of the first supply branch pipe 10 away from the second gas supply pipe 7 is connected to the flange of one end of the sealing pipe 23, so as to facilitate the separation of the sealing pipe 23 from the first supply branch pipe 10.

[0035] The first vacuum collection pump 9 is fixedly connected to the upper surface of the integrated plate 1. The output end of the first vacuum collection pump 9 is connected to the side flange of another sealing tube 23 through a pipe, so that the activated carbon suction tube 8 can be removed.

[0036] The end of the second delivery branch pipe 11 away from the second gas delivery pipe 7 is fixedly connected to the third gas delivery pipe 14, and the lower surface of the third gas delivery pipe 14 is connected to the upper surface of the filter box 12 through a pipe.

[0037] The upper surface of the integrated plate 1 is connected to the centralized tank 13 via a support base. The extraction column 29 is threadedly connected to the side of the centralized tank 13, which facilitates the installation and removal of the extraction column 29 and facilitates solid-phase microextraction.

[0038] The lower surface of the filter box 12 is detachably connected to the DNPH housing 19 via a pipe. The DNPH housing 19 can be removed to take out the internal DNPH column. The DNPH housing 19 contains the DNPH column. The upper surface of the integrated plate 1 is connected to the second vacuum collection pump 15 via a support base. The lower surface of the DNPH housing 19 is connected to the output flange of the second vacuum collection pump 15 via a pipe. The DNPH column is used to adsorb substances in the flue gas. The column is eluted with acetonitrile, and then the eluent is analyzed by liquid chromatography (HPLC).

[0039] Working principle: During use, the edible oil inside the reaction flask 17 is heated using the oil bath 2. When fumes are generated, air from the air tank 3 enters the reaction flask 17 through the first gas delivery pipe 4, allowing air from inside the reaction flask 17 to enter the second gas delivery pipe 7. Part of the fumes are delivered from the first delivery branch pipe 10 to the activated carbon pipette 8, where they are adsorbed and stored by the activated carbon inside. When the activated carbon pipette 8 needs to be removed, the fixing bolt 21 is first rotated to release its restriction on the rotating column 20. Then, the rotating column 20 drives the sealing plate 28 to rotate synchronously. The two sealing plates 28 can seal the inside of the sealing tube 23, effectively preventing the internal sample from being contaminated by external factors when the activated carbon pipette 8 is removed. Then, the fumes are analyzed using a GC-MS instrument. The second delivery branch pipe 11 enters the interior of the collection tank 13. The extraction column 29 can adsorb substances in the flue gas, thereby performing solid-phase microextraction. Before the flue gas enters the second vacuum collection pump 15, it can be filtered through the glass fiber filter membrane 27. The filtered flue gas will enter the interior of the DNPH shell 19. The flue gas is sampled using the DNPH column inside the DNPH shell 19. Then, the staff can remove the DNPH column inside the DNPH shell 19 for detection using HPLC-MS. When it is necessary to replace the internal glass fiber filter membrane 27, the staff can rotate the bolt 18 to move the push block 25 upward to release the limit rod 26 from the mounting plate 16. Then, the limit rod 26 can be slid through the sliding column 24 to facilitate the replacement of the glass fiber filter membrane 27.

[0040] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. An oil fume collection and detection system, comprising: The integrated plate (1), activated carbon straw (8) and filter box (12) are characterized in that: both sides of the activated carbon straw (8) are fixedly connected to sealing tubes (23), both of the two sealing tubes (23) are rotatably connected to two rotating columns (20), the sides of the four rotating columns (20) are fixedly connected to sealing plates (28), the ends of the two sealing plates (28) away from the rotating columns (20) are fitted together, the upper end of the rotating column (20) extends to the outside of the sealing tube (23), the upper end of the rotating column (20) is threadedly connected to a fixing bolt (21), the upper surface of the sealing tube (23) is provided with an insertion hole (22), and the lower end of the fixing bolt (21) is inserted into the insertion hole (22); The filter box (12) is fitted with a mounting plate (16) on its side. A glass fiber filter membrane (27) is fixedly connected to the side of the mounting plate (16). Two limiting rods (26) are slidably connected inside the mounting plate (16). One end of each of the two limiting rods (26) is inserted into the filter box (12). A pushing block (25) is slidably connected between the two limiting rods (26). A rotating bolt (18) is threaded inside the mounting plate (16). The lower end of the rotating bolt (18) is rotatably connected to the upper surface of the pushing block (25). A sliding column (24) is fixedly connected to the upper end of each of the two limiting rods (26). The upper end of the sliding column (24) extends to the outside of the mounting plate (16).

2. The oil fume collection and detection system according to claim 1, characterized in that, An oil bath (2) is fixedly connected to the upper surface of the integrated plate (1). A sealing cover (5) is attached to the upper surface of the oil bath (2). A reaction bottle (17) is placed inside the oil bath (2). A sealing plug (6) is inserted into the upper end of the reaction bottle (17).

3. The oil fume collection and detection system according to claim 2, characterized in that, An air tank (3) is fixedly connected to the upper surface of the integrated plate (1), and a first air supply pipe (4) is fixedly connected to the air supply end of the air tank (3). One end of the first air supply pipe (4) is inserted into the sealing plug (6).

4. The oil fume collection and detection system according to claim 2, characterized in that, The sealing plug (6) is internally fixedly connected to the second gas supply pipe (7), and the side surface of the second gas supply pipe (7) is fixedly connected to the first supply branch pipe (10) and the second supply branch pipe (11). The end of the first supply branch pipe (10) away from the second gas supply pipe (7) is connected to the flange at one end of the sealing pipe (23).

5. The oil fume collection and detection system according to claim 1, characterized in that, The upper surface of the integrated plate (1) is fixedly connected to the first vacuum collection pump (9), and the output end of the first vacuum collection pump (9) is connected to the side flange of another sealing pipe (23) through a pipe.

6. The oil fume collection and detection system according to claim 4, characterized in that, The end of the second delivery branch pipe (11) away from the second gas delivery pipe (7) is fixedly connected to the third gas delivery pipe (14), and the lower surface of the third gas delivery pipe (14) is connected to the upper surface of the filter box (12) through a pipe.

7. The oil fume collection and detection system according to claim 1, characterized in that, The upper surface of the integrated plate (1) is connected to the central tank (13) via a support base, and the side of the central tank (13) is threadedly connected to the extraction column (29).

8. The oil fume collection and detection system according to claim 1, characterized in that, The lower surface of the filter box (12) is detachably connected to the DNPH housing (19) via a pipe. The DNPH housing (19) is equipped with DNPH columns. The upper surface of the integrated plate (1) is connected to the second vacuum collection pump (15) via a support seat. The lower surface of the DNPH housing (19) is connected to the output flange of the second vacuum collection pump (15) via a pipe.

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