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CN-121978265-A - Automatic sample injection continuous combustion tester and use method thereof

CN121978265ACN 121978265 ACN121978265 ACN 121978265ACN-121978265-A

Abstract

The invention provides an automatic sample injection continuous combustion tester and a use method thereof, which relate to the field of combustion testers and comprise a combustor body, a combustion table, an ignition assembly, an air supply assembly, a sample injection tube and a plane adjusting assembly, wherein the sample injection tube is fixedly connected with the output end of the plane adjusting assembly, the sample injection tube is communicated with the output end of the sample supply assembly, the surface of the sample injection tube is slidably connected with an enclosure, the enclosure is buckled on the combustion table, the surface of the sample injection tube is fixedly connected with a sealing lifting plate, the top of the sealing lifting plate is attached to the inner side of the top of the enclosure, and the top of the combustion table is provided with a combustion groove.

Inventors

  • CUI HAN
  • DING JIAN
  • LIN XIAOMEI
  • XU JING
  • QIU JIAN

Assignees

  • 大连海关技术中心
  • 杭州研一智控科技有限公司

Dates

Publication Date
20260505
Application Date
20260305

Claims (9)

  1. 1. The utility model provides an automatic continuous combustion tester of advance, its characterized in that includes combustor body (1), combustion table (2), ignition module, air feed subassembly, sample feed subassembly, advance appearance pipe (3) and be used for driving advance the plane regulation subassembly of pipe (3) about going on, combustion table (2), ignition module, air feed subassembly, sample feed subassembly and plane regulation subassembly all are located one side at combustor body (1) top, advance appearance pipe (3) with the output fixed connection of plane regulation subassembly, advance appearance pipe (3) with the output of sample feed subassembly is linked together, advance appearance pipe (3) surface sliding connection has seal cover (4), seal cover (4) lock in on combustion table (2), advance appearance pipe (3) surface and still fixedly connected with shutoff lifting plate (5), the top of shutoff lifting plate (5) with seal cover (4) the inboard at top is laminated mutually, the top of combustion table (2) is equipped with combustion tank (6); the tail ends of the ignition component and the air supply component are positioned inside the sealing cover (4); the ignition assembly comprises a spark plug (7), a mounting plate (8), a power supply (9), a transformer (10), a capacitor (11), an ignition coil (12) and a conducting wire (13), wherein the spark plug (7) is fixedly mounted inside the sealing cover (4), the mounting plate (8) is fixedly mounted on one side of the combustor body (1), the power supply (9), the transformer (10) and the capacitor (11) are respectively and fixedly mounted on the mounting plate (8), the output end of the power supply (9) is connected with one end of the ignition coil (12), one end of the ignition coil (12) is connected with the transformer (10), one end of the capacitor (11) is electrically connected with the transformer (10), one end of the conducting wire (13) is connected with the transformer (10), and the other end of the conducting wire (13) is connected with one end of the spark plug (7).
  2. 2. The automatic sample injection continuous combustion tester according to claim 1, wherein the plane adjusting component comprises a fixing frame (14), a first sliding block (15), a first driving mechanism (16) for driving the first sliding block (15) to move transversely, a second sliding block (16) and a second driving mechanism (16) for driving the second sliding block (16) to move vertically, the fixing frame (14) is fixedly installed on one side of the top of the combustor body (1), the first driving mechanism is fixedly installed on the fixing frame (14), the output end of the first driving mechanism is connected with the first sliding block (15), the inner side of the second sliding block (16) is attached to one side of the first sliding block (15), the second driving mechanism is fixedly installed on the top of the first sliding block (15), the output end of the second driving mechanism is connected with one end of the second sliding block (16), a connecting plate (17) is further arranged on one side of the second sliding block (16), and the connecting plate (17) is fixedly connected with the surface of the sample injection tube (3).
  3. 3. The automatic sample injection continuous combustion tester according to claim 1, wherein the sample injection assembly comprises a fixing plate (18), a liquid combustion sample supply box (19), a supply pump (20), a liquid suction pipe (21) and a liquid supply pipe (22), the fixing plate (18) is fixedly installed on one side of the combustor body (1), the liquid combustion sample supply box (19) is fixedly installed on the fixing plate (18), the supply pump (20) is fixedly installed on the inner side of the combustor body (1), two ends of the supply pump (20) are respectively connected with the liquid suction pipe (21) and the liquid supply pipe (22), one end of the liquid suction pipe (21) is connected with an inner cavity of the liquid combustion sample supply box (19), and one end of the liquid supply pipe (22) is communicated with one end of the sample injection pipe (3).
  4. 4. The automatic sample injection continuous combustion tester according to claim 1, wherein the gas supply assembly comprises a gas storage tank (23), a gas supply pipe (24) and a first electromagnetic valve (25), the gas storage tank (23) is fixedly installed on one side of the combustor body (1), one end of the gas supply pipe (24) is connected with the gas storage tank (23), one end of the gas supply pipe (24) is located inside the enclosure (4), the first electromagnetic valve (25) is fixedly installed on the surface of the gas supply pipe (24), and the gas supply pipe (24) is located above a combustion groove (6) of the combustion table (2).
  5. 5. The automatic sample injection continuous combustion tester according to claim 1, wherein a lead assembly is further arranged on one side of the top of the combustor body (1); The lead assembly comprises a guide frame (26), a connecting sleeve (27), a connecting rod (28) and a sliding sleeve (29), wherein the guide frame (26) is fixedly installed at the top of the combustor body (1), the sliding sleeve (29) is slidably installed on the guide frame (26), one end of the connecting rod (28) is fixedly connected with the sliding sleeve (29), the other end of the connecting rod (28) is connected with a bottom spherical hinge of the connecting sleeve (27), and the surfaces of the connecting sleeve (27) are respectively connected with the liquid supply pipe (22) and the conductive wire (13) in a sliding mode.
  6. 6. The automatic sample injection continuous combustion tester according to claim 1, wherein the first driving mechanism comprises a first mounting seat (30), a first driving motor (31), a first threaded screw (32) and a guide rod (33), the first mounting seat (30) is fixedly mounted on one side of the fixed frame (14), the first driving motor (31) is fixedly mounted on the first mounting seat (30), the output end of the first driving motor (31) is fixedly connected with one end of the first threaded screw (32), the first threaded screw (32) is rotatably mounted on the fixed frame (14), the surface of the first threaded screw (32) is in threaded connection with one end of the first slider (15), the guide rod (33) is fixedly mounted on the fixed frame (14), and the surface of the guide rod (33) is in sliding connection with one end of the first slider (15).
  7. 7. The automatic sample injection continuous combustion tester according to claim 2, wherein the second driving mechanism comprises a second mounting seat (34), a second driving motor (35) and a second threaded screw rod (36), the second mounting seat (34) is fixedly mounted on the top of the first sliding block (15), the second driving motor (35) is fixedly mounted on the second mounting seat (34), the output end of the second driving motor (35) is fixedly connected with one end of the second threaded screw rod (36), and the second threaded screw rod (36) is in threaded connection with the middle part of the second sliding block (16).
  8. 8. The automatic sample injection continuous combustion tester according to claim 7, wherein the surface of the liquid supply pipe (22) is provided with a second electromagnetic valve (37), and the first electromagnetic valve (25) and the second electromagnetic valve (37) are electromagnetic check valves.
  9. 9. A method of using a continuous combustion tester suitable for use in the autoloading of any one of claims 1-8, said method comprising the steps of: S1, instrument preparation and initial positioning, namely placing a combustion table (2) at the top of a combustor body (1), and adjusting the initial position of a sample feeding pipe (3) through a plane adjusting component to ensure that the sample feeding pipe (3) is positioned right above a combustion groove (6) of the combustion table (2), so as to ensure that a spark plug (7) of an ignition component, an air outlet end of an air supply component and an air outlet end of the sample feeding component are all in a standby state; S2, sealing and space wrapping the cover (4), namely operating the plane adjusting assembly to drive the sampling tube (3) to move downwards, so that a sealing lifting plate (5) fixed on the surface of the sampling tube (3) moves downwards along with the sampling tube (3) until the cover (4) is buckled on the combustion table (2), wrapping the tail end of the combustion groove (6), the tail end of the ignition assembly and the tail end of the air supply assembly, and keeping the sampling tube (3) relatively sealed and slidable in the cover (4); S3, automatic sample injection under the liquid level, namely starting a sample feeding assembly, extracting a liquid sample from a liquid combustion sample supply box (19) by a supply pump (20) through a liquid extraction pipe (21), conveying the liquid sample to a sample injection pipe (3) through a liquid supply pipe (22), enabling the sample injection pipe (3) to extend into a combustion groove (6) of a combustion table (2) under the drive of a plane adjusting assembly, enabling the tail end of the sample injection pipe (3) to be positioned below the combustion liquid level or just contact the liquid level, and directly injecting the liquid sample under the liquid level; Starting an air supply assembly, starting an ignition assembly, outputting electric energy by a power supply (9), boosting by an ignition coil (12), matching an oscillating circuit consisting of a transformer (10) and a capacitor (11), and transmitting high-voltage electricity to a spark plug (7) in the enclosure (4) through a conductive wire (13), wherein the spark plug (7) generates electric sparks in a closed space, and if the concentration of vapor above a liquid level reaches a flammable limit, the spark plug is ignited, and the temperature at the moment is recorded by a sensor to be a flash point or an ignition point; s5, resetting and exhausting, namely after the test is finished, lifting the sample inlet pipe (3) and the sealing cover (4) through the plane adjusting assembly, exhausting combustion waste gas, separating the sealing cover (4) from the combustion table (2), and preparing for the next test; S6, secondary sample feeding and ignition, namely starting a sample feeding component, directly injecting a liquid sample under the liquid level, continuously fine-adjusting the plane adjusting component to enable the inner side of the top of the sealing cover (4) to be closely attached to the top of the sealing lifting plate (5) to form a relatively closed test space, standing a part of standard time between the combustion table (2) and the sealing cover (4) to enable combustion liquid to naturally volatilize in the closed space, enabling the vapor concentration above the liquid level to reach saturated vapor pressure at the temperature, starting the air supply component and the ignition component to ignite the liquid, and performing continuous test.

Description

Automatic sample injection continuous combustion tester and use method thereof Technical Field The invention relates to the field of combustion testers, in particular to an automatic sample injection continuous combustion tester and a use method thereof. Background In the macro territory of industrial production, dangerous goods transportation and consumer goods safety supervision, the combustion performance test is certainly the last defense line for guarding life and property safety. Whether the flash point and the ignition point of chemical liquid are measured or the continuous combustion stability of the ignition device such as a lighter is evaluated, the accuracy of the data is directly related to the grading management and control of fire risks, the breakthrough of international trade barriers and the success and failure of new material research and development. The prior publication number CN223154957U discloses a liquid continuous combustion tester, which comprises an instrument body, the top fixed mounting of instrument body has detection module, the top movable mounting of instrument body has the sample board that is located detection module right side, the sample groove has been seted up at the top of sample board, the top fixed mounting of sample board has the handle, and the top fixed mounting of instrument body has the ignition needle, this liquid continuous combustion tester, in the in-process of carrying out daily use, operating personnel places the sample board on test platform, reuse 10mL syringe gets 6 mL's test liquid and places it in the inside of sample groove, the sample is ready, the sample groove is divided into aluminum alloy sample groove and stainless steel sample groove simultaneously, aluminum alloy sample groove heat conductivity is good, stainless steel sample groove is used for holding the sample that viscosity is big, in order to satisfy the test work of different liquids. However, the above combustion tester is limited to recording of a single parameter, lacks regulation based on ambient air pressure and temperature, for example, if the test temperature cannot be automatically corrected under a high-altitude low-air-pressure environment, the combustion judgment will lose meaning, and meanwhile, the high consistency and the easy volatilization during liquid supply cannot be maintained, so that the test result is inaccurate. Therefore, it is necessary to provide a new automatic sample injection continuous combustion tester and a use method thereof to solve the above technical problems. Disclosure of Invention In order to solve the technical problems, the invention provides an automatic sample injection continuous combustion tester and a use method thereof. The invention provides an automatic sample injection continuous combustion tester which comprises a combustor body, a combustion table, an ignition assembly, a gas supply assembly, a sample injection pipe and a plane adjusting assembly for driving the sample injection pipe to perform up-down and left-right directions, wherein the combustion table, the ignition assembly, the gas supply assembly, the sample supply assembly and the plane adjusting assembly are all positioned on one side of the top of the combustor body, the sample injection pipe is fixedly connected with the output end of the plane adjusting assembly, the sample injection pipe is communicated with the output end of the sample supply assembly, the surface of the sample injection pipe is slidably connected with an enclosure, the enclosure is buckled on the combustion table, the surface of the sample injection pipe is fixedly connected with a plugging lifting plate, the top of the plugging lifting plate is attached to the inner side of the top of the enclosure, and the top of the combustion table is provided with a combustion groove; the tail ends of the ignition component and the air supply component are positioned inside the sealing cover; The ignition assembly comprises a spark plug, a mounting plate, a power supply, a transformer, a capacitor, an ignition coil and a conducting wire, wherein the spark plug is fixedly mounted in the enclosure, the mounting plate is fixedly mounted on one side of the combustor body, the power supply, the transformer and the capacitor are respectively and fixedly mounted on the mounting plate, the output end of the power supply is connected with one end of the ignition coil, one end of the ignition coil is connected with the transformer, one end of the capacitor is electrically connected with the transformer, one end of the conducting wire is connected with the transformer, and the other end of the conducting wire is connected with one end of the spark plug. Further, the plane adjusting assembly comprises a fixing frame, a first sliding block, a first driving mechanism for driving the first sliding block to transversely move, a second sliding block and a second driving mechanism for driving the second sliding block to vertically