Flash point on-line analysis device

Abstract

The utility model discloses a flash point on-line analysis device, relates to the detection instrument field, including test box and movable door that is movably installed in the front side of test box, the bottom surface in the test box is fixedly installed with the placing table, the top of placing table is fixedly installed with the heating plate, the inside of placing table is movably connected with the charging barrel in a clamping way, the charging barrel is connected with the heating plate in a clamping way. An opening is formed in the rear side of the test box, and a uniform mixing assembly located on the outer side of the opening is fixedly mounted on the rear side of the test box. According to the utility model, a sample is placed in the charging barrel, is placed on the placing table and is rapidly heated and volatilized by using the heating plate, air is introduced through the air inlet and outlet via the pump machine, then the uniform mixing assembly is controlled to be opened, and the uniform mixing assembly is positioned in the test box and moves up and down in a reciprocating manner to stir gas in the test box to accelerate the gas flow rate; therefore, the mixing efficiency of sample volatile gas and air is improved, and the mixing detection efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of detection instruments, in particular to an on-line flash point analysis device. Background Art

[0002] The flash point of asphalt is an index for evaluating the construction safety of asphalt. The flash point refers to the lowest temperature at which the vapor volatilized from a flammable liquid can flash and catch fire after forming a flammable mixture with air. At this temperature, combustion cannot continue. If the temperature continues to rise, it may cause the asphalt to burn, leading to a fire. The function of the asphalt flash point index is to determine the safe temperature limit when the asphalt is heated and melted, ensuring the safe use of asphalt.

[0003] In the existing flash point analysis and testing devices, usually, after the sample naturally volatilizes for a period of time, the flammable gas volatilized in the air is ignited, which has problems such as slow monitoring speed and long heating time of the oil-gas mixture. At the same time, the unpleasant gas generated during the testing process of the asphalt flash point is not well treated, and the gas overflows into the air, which will cause certain harm to the health of the operators. Content of the Utility Model

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0005] An on-line flash point analysis device includes a test box and a movable door movably installed on the front side of the test box. The bottom surface inside the test box is fixedly installed with a placement table. The top of the placement table is fixedly installed with a heating plate. The inner side of the placement table is movably clamped with a material cylinder. An opening is formed in the rear side of the test box. A mixing component located outside the opening is fixedly installed on the rear side of the test box. Two air inlet and outlet ports are arranged on the right side of the test box. A pump is fixedly installed on the right side and the top of the test box and is communicated with the two air inlet and outlet ports respectively. A filtering component communicated between the pump and the air inlet and outlet ports is fixedly installed on the top of the test box.

[0006] The further improvement of the technical solution of the utility model lies in that: the mixing component includes a mounting cover and a rack. The mounting cover is fixedly connected to the rear side of the opening. The rack is fixedly installed on the left side inside the opening. A threaded rod is rotatably installed inside the mounting cover. A driving motor connected to the threaded rod is fixedly installed on the top of the mounting cover. A slider is threadedly connected to the outside of the threaded rod. A rotating shaft is rotatably installed on the front side of the slider. A fan blade is fixedly installed on the front side of the rotating shaft. A planar gear is fixedly installed on the outside of the rotating shaft.

[0007] A further improvement of the technical solution of the present utility model lies in that: the filtering assembly includes a housing, a cover plate is fixedly installed on the front side of the housing, two clamping grooves are formed inside the housing, two clamping frames are movably clamped on the inner sides of the two clamping grooves respectively, and a first filter material and a second filter material are respectively arranged inside the two clamping frames.

[0008] A further improvement of the technical solution of the present utility model lies in that: the threaded rod is a reciprocating screw rod, and the installation cover is hermetically connected between the openings.

[0009] A further improvement of the technical solution of the present utility model lies in that: the rack is adapted to the height of the opening, and the planar gear meshes with the right side of the rack.

[0010] A further improvement of the technical solution of the present utility model lies in that: the first filter material and the second filter material are made of glass fiber and activated carbon materials respectively.

[0011] A further improvement of the technical solution of the present utility model lies in that: the cover plate is connected to the front side of the housing by bolts.

[0012] A further improvement of the technical solution of the present utility model lies in that: a controller is fixedly installed on the left side of the front side of the test box, and a flame baffle corresponding to the positions of the air inlet and outlet is fixedly installed inside the test box.

[0013] Due to the adoption of the above technical solution, the technical progress achieved by the present utility model compared with the prior art is:

[0014] 1. The present utility model provides a flash point on-line analysis device. By placing a sample in a cylinder on a placement table and using a heating plate to rapidly heat and volatilize it, after introducing air through the air inlet and outlet via a pump, the mixing component is controlled to be opened. The mixing component reciprocates up and down inside the test box to stir the gas inside the test box, accelerating the gas flow rate, thereby accelerating the mixing efficiency of the sample volatile gas and air, and thus improving the mixing detection efficiency.

[0015] 2. The present utility model provides a flash point on-line analysis device. After the test, the filtering assembly arranged between the air inlet and outlet and the pump inhales the unpleasant gas into the filtering assembly. The filtering assembly filters and discharges the irritating odor and harmful substances in the unpleasant gas, reducing the physical damage to the operator after opening the movable door. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the flash point on-line analysis device of the present utility model;

[0017] Figure 2 is a schematic structural diagram inside the detection box of the present utility model;

[0018] Figure 3Schematic structural diagram of the mixing component of the present utility model;

[0019] Figure 4 Schematic diagram of the installation position of the filtering component of the present utility model;

[0020] Figure 5 Schematic structural diagram of the filtering component of the present utility model.

[0021] In the figure: 1, test chamber; 2, movable door; 3, placement table; 4, heating plate; 5, material cylinder; 6, opening; 7, mixing component; 71, mounting cover; 72, rack; 73, threaded rod; 74, drive motor; 75, slider; 76, rotating shaft; 77, fan blade; 78, spur gear; 8, air inlet and outlet; 9, pump; 10, filtering component; 101, housing; 102, cover plate; 103, card slot; 104, card frame; 105, filter material one; 106, filter material two; 11, controller; 12, flame baffle. Detailed implementation manner

[0022] The following further elaborates on the present utility model in detail:

[0023] As Figures 1 to 5 shown, the present utility model provides an on-line flash point analysis device, which includes a test chamber 1 and a movable door 2 movably installed on the front side of the test chamber 1. The bottom surface inside the test chamber 1 is fixedly installed with a placement table 3, the top of the placement table 3 is fixedly installed with a heating plate 4, the inside of the placement table 3 is movably clamped with a material cylinder 5, an opening 6 is formed in the rear side of the test chamber 1, and a mixing component 7 located outside the opening 6 is fixedly installed on the rear side of the test chamber 1. Two air inlet and outlets 8 are arranged on the right side of the test chamber 1, and a pump 9 respectively communicated with the two air inlet and outlets 8 is fixedly installed on the right side and the top of the test chamber 1. A filtering component 10 communicating between the pump 9 and the air inlet and outlet 8 is fixedly installed on the top of the test chamber 1.

[0024] By placing the sample in the material cylinder 5 arranged on the placement table 3 and using the heating plate 4 to rapidly heat and volatilize it, after introducing air through the air inlet and outlet 8 via the pump 9, the mixing component 7 is controlled to be opened. The mixing component 7 reciprocates up and down inside the test chamber 1 to stir the gas inside the test chamber 1 and accelerate the gas flow rate, thereby accelerating the mixing efficiency of the sample volatilized gas and air, improving the mixing detection efficiency. At the same time, the filtering component 10 arranged between the air inlet and outlet 8 and the pump 9 inhales the unpleasant gas into the filtering component 10 after the test, and the filtering component 10 filters and discharges the pungent smell and harmful substances in the unpleasant gas, reducing the physical damage to the operator after the movable door 2 is opened.

[0025] As Figure 3As shown, the mixing component 7 includes a mounting cover 71 and a rack 72. The mounting cover 71 is fixedly connected to the rear side of the opening 6, and the rack 72 is fixedly installed on the left side inside the opening 6. A threaded rod 73 is rotatably installed inside the mounting cover 71, and a driving motor 74 connected to the threaded rod 73 is fixedly installed on the top of the mounting cover 71. The outer part of the threaded rod 73 is threadedly connected with a slider 75. The front side of the slider 75 is rotatably installed with a rotating shaft 76, a fan blade 77 is fixedly installed on the front side of the rotating shaft 76, and a spur gear 78 is fixedly installed on the outer side of the rotating shaft 76.

[0026] The driving motor 74 drives the threaded rod 73 located inside the mounting cover 71 to rotate. The rotation of the threaded rod 73 drives the slider 75 to slide up and down inside the mounting cover 71. When the slider 75 drives the rotating shaft 76 to slide up and down, the spur gear 78 rotates along the rack 72 to drive the rotating shaft 76 to rotate, thereby driving the fan blade 77 to rotate. The rotation of the fan blade 77 accelerates the gas flow rate in the test chamber 1 to accelerate the mixing of the volatile sample and air, thereby accelerating the mixing of the volatile gas and air to improve the detection efficiency.

[0027] As Figure 4 and Figure 5 As shown, the filtering component 10 includes a housing 101. A cover plate 102 is fixedly installed on the front side of the housing 101. Two clamping grooves 103 are formed inside the housing 101. Two clamping frames 104 are movably clamped on the inner sides of the two clamping grooves 103. A first filter material 105 and a second filter material 106 are respectively arranged inside the two clamping frames 104.

[0028] The pump 9 extracts the unpleasant gas in the test chamber 1 through the air inlet and outlet 8 and enters the housing 101. The gas passes through the first filter material 105 and the second filter material 106 arranged inside the clamping frame 104 clamped in the clamping groove 103 in sequence to adsorb and filter the pungent smell and harmful substances therein, and then is discharged through the pump 9. Thus, by pumping away the unpleasant gas in the test chamber 1 and filtering it through the first filter material 105 and the second filter material 106, the health damage to the operator is reduced.

[0029] As Figure 3 As shown, the threaded rod 73 is a reciprocating screw rod, and the mounting cover 71 is hermetically connected to the opening 6.

[0030] Since the threaded rod 73 is a reciprocating screw rod, the slider 75 can be driven to move back and forth to mix the gas.

[0031] As Figure 3 As shown, the rack 72 is adapted to the height of the opening 6, and the spur gear 78 meshes with the right side of the rack 72.

[0032] When the spur gear 78 meshes with the rack 72 and moves with the slider 75, it drives the rotating shaft 76 to rotate along the rack 72 to accelerate the mixing of the gas in the test chamber 1 and improve the efficiency.

[0033] As shown Figure 5 in the figure, the first filter material 105 and the second filter material 106 are made of glass fiber and activated carbon respectively.

[0034] Since the first filter material 105 and the second filter material 106, which are made of glass fiber and activated carbon, have good permeability and filtration efficiency, harmful substances and pungent odors in the malodorous gas can be filtered.

[0035] As shown Figure 5 in the figure, the cover plate 102 is connected to the front side of the housing 101 by bolts.

[0036] By installing the cover plate 102 on the housing 101 with bolts, it can be disassembled to replace the first filter material 105 and the second filter material 106.

[0037] As shown Figure 2 in the figure, a controller 11 is fixedly installed on the left side of the front side of the test chamber 1, and a flame baffle 12 corresponding to the position of the air inlet and outlet 8 is fixedly installed inside the test chamber 1.

[0038] By providing the flame baffle 12, it is possible to prevent the ignition from flushing into the air inlet and outlet 8.

[0039] Next, the working principle of the flash point on-line analysis device will be specifically described.

[0040] As shown Figures 1 to 5 in the figure, the sample is placed inside the cartridge 5, and the cartridge 5 is clamped on the inner side of the placement table 3 by opening the movable door 2. The movable door 2 ensures sealing. External air is drawn in through the pump 9 connected to the air inlet and outlet 8. Subsequently, the controller 11 controls the electric heating wire inside the heating plate 4 to heat the cartridge 5 so that the sample inside it volatilizes. By controlling the opening of the drive motor 74, the drive motor 74 drives the threaded rod 73 located inside the mounting cover 71 to rotate. By the rotation of the threaded rod 73, the slider 75 is driven to slide up and down inside the mounting cover 71. When the slider 75 drives the rotating shaft 76 to slide up and down, the spur gear 78 rotates along the rack 72 to drive the rotating shaft 76 to rotate, thereby driving the fan blade 77 to rotate. By the rotation of the fan blade 77, the gas flow rate inside the test chamber 1 is increased to accelerate the mixing of the volatilized sample and air. A temperature sensor and a gas detector are provided inside the test chamber 1 to detect the temperature value and the concentration of the mixed gas. When reaching the detection point, the mixed gas is ignited by the igniter provided inside the test chamber 1. The data measured by the temperature sensor and the gas detector are transmitted to the controller 11. By controlling the opening of the pump 9 connected to the filter assembly 10, the malodorous gas inside the test chamber 1 is drawn into the housing 101 through the air inlet and outlet 8, and passes through the first filter material 105 and the second filter material 106 provided inside the card frame 104 clamped in the card slot 103 in sequence to adsorb and filter the pungent odor and harmful substances therein, and then is discharged through the pump 9.

[0041] The above has generally described the present utility model in detail. However, based on the present utility model, some modifications or improvements can be made, which are obvious to those of ordinary skill in the technical field. Therefore, any modifications or improvements that do not depart from the spirit and concept of the present utility model are within the protection scope of the present utility model.

Claims

1. A flash point online analysis device, comprising a test box (1) and a movable door (2) movably mounted on the front side of the test box (1), characterized in that: A placing table (3) is fixedly mounted on the bottom surface of the interior of the test box (1), a heating plate (4) is fixedly mounted on the top of the placing table (3), a barrel (5) is movably connected to the inner side of the placing table (3), an opening (6) is provided on the rear side of the test box (1), a mixing component (7) located outside the opening (6) is fixedly mounted on the rear side of the test box (1), two air inlets and outlets (8) are arranged on the right side of the test box (1), a pump (9) respectively connected to the two air inlets and outlets (8) is fixedly mounted on the right side and the top of the test box (1), and a filter component (10) connected between the pump (9) and the air inlets and outlets (8) is fixedly mounted on the top of the test box (1).

2. A flash point online analysis device according to claim 1, characterized in that: The mixing assembly (7) comprises a mounting cover (71) and a rack (72), wherein the mounting cover (71) is fixedly connected to the rear side of the opening (6), and the rack (72) is fixedly installed on the left side of the inside of the opening (6); a threaded rod (73) is rotatably installed inside the mounting cover (71), a driving motor (74) connected to the threaded rod (73) is fixedly installed on the top of the mounting cover (71), a slider (75) is threadedly connected to the outside of the threaded rod (73), a rotating shaft (76) is rotatably installed on the front side of the slider (75), a fan blade (77) is fixedly installed on the front side of the rotating shaft (76), and a plane gear (78) is fixedly installed on the outside of the rotating shaft (76).

3. A flash point online analysis device according to claim 1, characterized in that: The filter assembly (10) comprises a shell (101), a cover plate (102) is fixedly mounted on the front side of the shell (101), two card slots (103) are provided inside the shell (101), two card frames (104) are movably connected to the inner sides of the two card slots (103), and filter material 1 (105) and filter material 2 (106) are respectively provided inside the two card frames (104).

4. A flash point online analysis device according to claim 2, characterized in that: The threaded rod (73) is a reciprocating threaded rod, and the mounting cover (71) is sealed and connected between the opening (6).

5. A flash point online analysis device according to claim 2, characterized in that: The rack (72) is adapted to the height of the opening (6), and the plane gear (78) is meshed with the right side of the rack (72).

6. A flash point online analysis device according to claim 3, characterized in that: The filter material one (105) and the filter material two (106) are glass fiber and activated carbon materials respectively.

7. A flash point online analysis device according to claim 3, characterized in that: The cover plate (102) is connected to the front side of the housing (101) using bolts.

8. A flash point online analysis device according to claim 1, characterized in that: A controller (11) is fixedly installed on the left side of the front side of the test box (1), and a flame baffle (12) corresponding to the position of the air inlet and outlet (8) is fixedly installed inside the test box (1).

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