Electronic ignition coil for improving flash point value test accuracy

Abstract

The utility model provides an electronic ignition coil capable of improving the testing accuracy of a flash point value. The electronic ignition coil capable of improving the testing accuracy of the flash point value comprises a stainless steel sleeve, a supporting piece and an ignition coil, the ignition coil is a platinum ignition coil; the ignition coil comprises a spiral part and an outer side lead; the form of the spiral part comprises that the spiral coil is on the same horizontal plane or the spiral coil extends along the supporting piece; when the spiral coils are in the same horizontal plane, a first angle is formed between the spiral coils and the outer side lead; when the spiral coil extends along the supporting piece, a second angle is formed between the stainless steel sleeve and the supporting piece. The electronic ignition coil is simple in overall structure and convenient to use, and the flash point value measured in the plateau area is high in accuracy and small in deviation.

Description

TECHNICAL FIELD

[0001] The utility model relates to detection device technical field especially relates to an electronic ignition coil of improving flash point value test accuracy. BACKGROUND

[0002] The flash point refers to the lowest temperature at which a mixture of flammable liquid vapor and air ignites when exposed to an open flame. It is an important parameter for measuring the fire risk of flammable liquids. The standard methods for determining the flash point include ISO 2719-2016, ISO 13736-2021, GB / T 261-2021, GB / T 21789-2008, etc. Gas flame and electronic ignition coil are allowed to be used as the fire source. Among them, the ignition method of electronic ignition coil is widely used in the production and operation of oil analysis and detection of diesel, aviation kerosene, etc. due to its convenience, stability, and resistance to environmental interference.

[0003] CN112815354A discloses a kind of ignition device of flash point tester and control module thereof, wherein ignition device includes ignition head, ignition head front end is provided with ignition wire, ignition head is fixed on fixed sleeve, ignition head and the position of fixed sleeve connected are provided with ceramic tube, fixed sleeve is fixed with ignition wire rear sleeve away from ceramic tube another end, control module is connected with ignition device by electricity and is used to control the ignition of the ignition device;Adopt ignition wire structure and the ignition mode of electric ignition, there is no open flame, no gas source in the ignition process, and there is no need to adjust the size of flame, more safe, and the accuracy of test is higher.

[0004] CN209247670U discloses a kind of new flash point determinator, including bearing plate, the bearing plate is provided with flash point determination device, one side of the flash point determination device is provided with oil cup cooling device arranged on bearing plate;The flash point determination device includes control box, mechanical arm, oil cup sealing stirring assembly, oil cup heating assembly, heat dissipation component;The oil cup cooling device includes refrigeration equipment, bearing round table, copper pipe coil, the copper pipe coil is connected with refrigeration equipment by copper pipe single line arrangement.The flash point determinator is simple in overall design, and the heating effect of copper oil cup is efficient, and its service life can be greatly improved by heat dissipation component;The setting of oil cup cooling device greatly improves the cooling rate of copper oil cup, and correspondingly improves the working efficiency of the determinator.

[0005] CN219302330U discloses a fuel oil flash point detector, including the bottom box, the inner cavity bottom wall of the bottom box is installed with electric push rod, and the push rod one end of electric push rod penetrates the top of bottom box, the top of electric push rod is installed with boss, the boss protruding bottom is installed with first insulating rod, the outer side of first insulating rod is installed with heat insulation plate, the top of heat insulation plate is penetrated and is set with a plurality of groups of air holes, the bottom of heat insulation plate is installed with insulating cylinder, the bottom of insulating cylinder is penetrated and is set with a plurality of groups of through holes. By installing first insulating rod, heat insulation plate, air hole, through hole, air hole is used for the circulation of air, through hole is used for the circulation of oil vapor, ensure that air and oil vapor can be uniformly mixed, heat insulation plate is used for bearing ignition device, so that the ignition device is located in the inner chamber of insulating cylinder, ensure that when ignition device ignites, most of the heat is blocked by heat insulation plate, avoid a large amount of heat to cause damage to the whole flash point detection equipment.

[0006] But the above-mentioned flash point tester is only calibrated by standard sample under normal pressure condition, and the use of the flash point tester in plateau low pressure condition is not fully considered, resulting in that the observed flash point measured by the electronic ignition coil of the flash point tester in plateau area is high after correction by standard atmospheric pressure correction formula, and the maximum deviation can reach 5.5 DEG C, which exceeds the requirement of method reproducibility.

[0007] Therefore, it is of great significance to develop an electronic ignition coil for improving the accuracy of flash point value test to solve the problem of low accuracy of flash point value test of the existing flash point tester in plateau area. The utility model discloses a kind of electronic ignition coils for improving the accuracy of flash point value test, and the test result obtained by flash point tester according to standard method meets the use requirement in plateau area by specific ignition coil structure;The electronic ignition coil of the utility model has simple overall structure, is easy to use, and is suitable for wide range of popularization and application in plateau area.

[0008] In view of the problems in the prior art, the utility model provides an electronic ignition coil for improving the accuracy of flash point value test, and the test result obtained by flash point tester according to standard method meets the use requirement in plateau area by specific ignition coil structure;The electronic ignition coil of the utility model has simple overall structure, is easy to use, and is suitable for wide range of popularization and application in plateau area.

[0009] To achieve this purpose, the utility model adopts the following technical solutions:

[0010] The utility model provides an electronic ignition coil for improving the accuracy of flash point value test, and the electronic ignition coil for improving the accuracy of flash point value test includes stainless steel cover, support and ignition coil connected in sequence;

[0011] The ignition coil is platinum ignition coil;The ignition coil includes helical portion and outer lead;The form of helical portion includes helical coil in the same horizontal plane or helical coil extends along support;

[0012] When helical coil is in the same horizontal plane, the first angle is formed between helical coil and outer lead;

[0013] When the helical coil extends along the support, the stainless steel sleeve and the support form a second angle.

[0014] The ignition coil in the electronic ignition coil for improving the test accuracy of flash point value is formed by coiling a platinum wire, and the ignition coil comprises a helical part and an outer lead wire; the shape of the helical part comprises that the helical coil is in the same horizontal plane or the helical coil extends along the support; and when the helical coil is in the same horizontal plane, the helical coil and the outer lead wire form a first angle; compared with the structure that the existing electronic ignition coil coils the platinum wire in a column on the support, the contact area of the fire source and fuel vapor can be effectively improved, the fuel vapor can be effectively ignited, the deviation between the standard corrected flash point value and the reference flash point value is reduced, the test accuracy of the flash point value is improved, and the use under the condition of low air pressure on a plateau is facilitated.

[0015] The utility model discloses still designed when the helical coil extends along the support, the stainless steel sleeve and the support form a second angle, improve the contact area of the fire source and fuel vapor, and then can improve the test accuracy of flash point value, satisfy the use requirement of plateau environment.

[0016] The ignition coil with the specific structure can also reduce the total length of the platinum wire and save the preparation cost of the device.

[0017] The material of the support can be ceramic or stainless steel.

[0018] Preferably, the center of the helical part is connected with the support.

[0019] Preferably, the outer lead wire is connected with the stainless steel sleeve.

[0020] Preferably, the diameter of the platinum wire is 0.2mm-1.0mm, for example, can be 0.2mm, 0.25mm, 0.3mm, 0.5mm, 0.7mm, 0.9mm or 1.0mm, etc., but is not limited to the listed values, and other values not listed in the range are also applicable.

[0021] Preferably, the number of turns of the coiled platinum wire is 1-8 turns, for example, can be 1 turn, 2 turns, 3 turns, 4 turns, 5 turns, 6 turns, 7 turns or 8 turns.

[0022] Preferably, the first angle is 10°-90°, for example, can be 10°, 15°, 20°, 30°, 50°, 60°, 70°, 80° or 90°, etc., but is not limited to the listed values, and other values not listed in the range are also applicable.

[0023] Preferably, the second angle is 10°-75°, for example, can be 10°, 15°, 20°, 30°, 50°, 60° or 75°, etc., but not only limited to the listed values, other values not listed in the range of values are also applicable.

[0024] The first angle of the utility model is preferably 10°-90°, and the second angle is 10°-75°, which can well adapt to various positions of the ignition arm and facilitate the test and use of the flash point value of the electronic ignition coil.

[0025] Preferably, the distance between the edges of adjacent platinum wire coils is 0.2-2.0mm, for example, can be 0.2mm, 0.5mm, 0.7mm, 1.0mm, 1.3mm, 1.5mm or 2.0mm, etc., but not only limited to the listed values, other values not listed in the range of values are also applicable.

[0026] The distance between the edges of adjacent platinum wire coils of the utility model is preferably 0.2-2.0mm, which ensures that the fuel vapor passes through the ignition coil with the maximum area. When the distance between the edges of adjacent platinum wire coils is small, the coil will be short-circuited; when the distance between the edges of adjacent platinum wire coils is large, the fuel vapor cannot be ignited, and the flash point value cannot be tested.

[0027] Preferably, the diameter of the innermost circle of the spiral portion is 0.2-3mm, for example, can be 0.2mm, 0.5mm, 0.8mm, 1mm, 1.5mm, 2mm, 2.5mm or 3mm, etc., but not only limited to the listed values, other values not listed in the range of values are also applicable.

[0028] Preferably, the diameter of the outermost circle of the spiral portion is 2.0-10mm, for example, can be 2.0mm, 3mm, 5mm, 7mm, 8mm, 9mm or 10mm, etc., but not only limited to the listed values, other values not listed in the range of values are also applicable.

[0029] The use method of the electronic ignition coil for improving the accuracy of flash point value testing of the utility model comprises: turning on the power supply, generating a current of 1A-20A, and realizing the ignition of the electronic ignition coil.

[0030] Compared with the prior art, the utility model has at least the following beneficial effects:

[0031] (1) The electronic ignition coil for improving the accuracy of flash point value testing provided by the utility model has a reasonable structure, can effectively ignite fuel vapor, improves the accuracy of flash point value testing under highland low pressure conditions, and is suitable for wide application in highland areas;

[0032] (2) The specific electronic coil structure of the electronic ignition coil for improving the test accuracy of the flash point value can reduce the total length of the platinum wire, and save cost. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 is a structure schematic view of the electronic ignition coil for improving the test accuracy of the flash point value in the embodiment 2 of the utility model.

[0034] Figure 2 is a structure schematic view of the electronic ignition coil for improving the test accuracy of the flash point value in the embodiment 3 of the utility model.

[0035] In the figure: 1 - stainless steel sleeve; 2 - support; 3 - spiral part; 4 - outer lead. DETAILED DESCRIPTION

[0036] The technical scheme of the utility model will be further explained in combination with the drawings and through specific embodiments.

[0037] The utility model will be further explained in detail below. But the following examples are only simple examples of the utility model, and do not represent or limit the protection scope of the utility model, and the protection scope of the utility model is subject to the claims.

[0038] It should be understood that, in the description of the utility model, the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second" and the like are only for description purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more features. In the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more.

[0039] It should be noted that, in the description of the utility model, unless otherwise explicitly specified and limited, the terms "set", "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood through specific circumstances.

[0040] Embodiment 1

[0041] The embodiment provides an electronic ignition coil for improving accuracy of flash point value test.

[0042] The electronic ignition coil for improving accuracy of flash point value test comprises a stainless steel sleeve 1, a support 2 and an ignition coil connected in sequence.

[0043] The ignition coil is a platinum ignition coil; the ignition coil comprises a spiral portion 3 and an outer lead 4; the spiral portion 3 is in the form of spiral coils in the same horizontal plane, and the angle between the spiral coils and the outer lead 4 is 90°.

[0044] The center of the spiral portion 3 is connected with the support 2.

[0045] The outer lead 4 is connected with the stainless steel sleeve 1.

[0046] The diameter of the platinum wire is 0.6 mm.

[0047] The platinum wire is coiled 8 times.

[0048] The distance between the edges of adjacent platinum wire coils is 0.5 mm.

[0049] The diameter of the innermost coil of the spiral portion 3 is 0.8 mm, and the diameter of the outermost coil of the spiral portion 3 is 5 mm.

[0050] Embodiment 2

[0051] The embodiment provides an electronic ignition coil for improving accuracy of flash point value test, and a structural schematic diagram is shown in Figure 1 Figure 1 The spiral portion 3 is only schematic.

[0052] The electronic ignition coil for improving accuracy of flash point value test comprises a stainless steel sleeve 1, a support 2 and an ignition coil connected in sequence.

[0053] The ignition coil is a platinum ignition coil; the ignition coil comprises a spiral portion 3 and an outer lead 4; the spiral portion 3 is in the form of spiral coils in the same horizontal plane, and the angle between the spiral coils and the outer lead is 35°.

[0054] The center of the spiral portion 3 is connected with the support 2.

[0055] The outer lead 4 is connected with the stainless steel sleeve 1.

[0056] The diameter of the platinum wire is 0.2 mm.

[0057] ​The number of turns of the platinum wire coil is 6 turns.

[0058] The distance between the edges of adjacent platinum wire coils is 2.0 mm.

[0059] The diameter of the innermost turn of the spiral portion 3 is 0.3 mm.

[0060] The diameter of the outermost turn of the spiral portion 3 is 2.0 mm.

[0061] Example 3

[0062] The present example provides an electronic ignition coil for improving the accuracy of flash point value testing, and a structural diagram thereof is shown in Figure 2 Figure 2 The spiral portion 3 in the figure is only schematic.

[0063] The electronic ignition coil for improving the accuracy of flash point value testing comprises a stainless steel sleeve 1, a support 2, and an ignition coil connected in sequence.

[0064] The ignition coil is a platinum ignition coil; the ignition coil comprises a spiral portion 3 and an outer lead 4; the spiral portion 3 is in the form of a spiral coil extending along the support; the angle between the stainless steel sleeve 1 and the support 2 is 50°.

[0065] The center of the spiral portion 3 is connected to the support 2.

[0066] The outer lead 4 is connected to the stainless steel sleeve 1.

[0067] The diameter of the platinum wire is 1.0 mm.

[0068] The number of turns of the platinum wire coil is 4 turns.

[0069] The distance between the edges of adjacent platinum wire coils is 0.2 mm.

[0070] The diameter of the innermost turn of the spiral portion 3 is 0.5 mm.

[0071] The diameter of the outermost turn of the spiral portion 3 is 10 mm.

[0072] The use method of the electronic ignition coil for improving the accuracy of flash point value testing provided by the above example comprises: turning on the power supply to generate a current of 1A-20A to realize ignition of the electronic ignition coil.

[0073] Comparative Example 1

[0074] The present comparative example provides an electronic ignition coil, which comprises a stainless steel sleeve, a support, and an ignition coil connected in sequence.

[0075] The ignition coil is a platinum ignition coil;​

[0076] The ignition coil is a columnar structure wound by platinum wire; the columnar structure is wound on a support, the winding diameter is 4.0mm, one end of the platinum wire is connected with the support, and the other end is connected with a stainless steel sleeve.

[0077] The platinum wire is wound for 4 turns.

[0078] The diameter of the platinum wire is 0.5mm.

[0079] The distance between the edges of adjacent platinum wire turns is 0.5mm.

[0080] The diameter of the columnar structure is 4.0mm.

[0081] The present application also provides a use method of the electronic ignition coil, which comprises:

[0082] Turning on the power supply to generate a current of 10A-11A to realize ignition of the electronic ignition coil.

[0083] The electronic ignition coils in Example 1 and Comparative Example 1 are tested for flash point values under gas pressures of 97kPa, 90kPa, 80kPa, 70kPa and 60kPa respectively. The results of the reference flash point, the observed flash point, the standard corrected flash point corrected by the standard pressure correction formula, and the deviation of the standard corrected flash point from the reference flash point are shown in Table 1.

[0084] Table 1

[0085]

[0086]

[0087] As can be seen from Table 1, the electronic ignition coil provided by the present application has no deviation between the standard corrected flash point and the reference flash point under gas pressures of 97kPa and 80kPa, and has a small deviation of only 0.5℃ between the standard corrected flash point and the reference flash point under gas pressures of 90kPa, 70kPa and 60kPa, thereby greatly improving the accuracy of flash point value testing. However, the electronic ignition coil in Comparative Example 1 has a small deviation between the standard corrected flash point and the reference flash point under a gas pressure of 80kPa or higher, and has a deviation of 2℃ between the standard corrected flash point and the reference flash point under a gas pressure of 70kPa or 60kPa, which does not meet the requirements of flash point value testing.

[0088] The applicant declares that the detailed structural features of the utility model are illustrated by the above embodiments, but the utility model is not limited to the above detailed structural features, that is, it does not mean that the utility model must rely on the above detailed structural features to be implemented. It should be understood by those skilled in the art that any improvement of the utility model, equivalent replacement of the components selected by the utility model, increase of auxiliary components, selection of specific modes and the like all fall within the protection scope and disclosure scope of the utility model.

[0089] The preferred embodiments of the utility model are described in detail above, but the utility model is not limited to the specific details in the above embodiments, and various simple modifications can be made to the technical solutions of the utility model within the technical concept of the utility model, and these simple modifications all belong to the protection scope of the utility model.

[0090] In addition, it should be noted that each specific technical feature described in the above specific embodiments can be combined in any appropriate manner without contradiction, and in order to avoid unnecessary repetition, the utility model will not further describe various possible combination manners.

[0091] In addition, various different embodiments of the utility model can also be combined in any manner, as long as it does not deviate from the idea of the utility model, and it should be considered as disclosed content of the utility model.

Claims

1. An electronic ignition coil for improving the accuracy of flash point value testing, characterized by, The electronic ignition coil for improving the accuracy of flash point value test comprises a stainless steel sleeve, a support and an ignition coil connected in sequence; The ignition coil is a platinum ignition coil; the ignition coil comprises a spiral part and an outer lead; the spiral part comprises spiral coils in the same horizontal plane or spiral coils extending along the support; When the spiral coils are in the same horizontal plane, a first angle is formed between the spiral coils and the outer lead; When the spiral coils extend along the support, a second angle is formed between the stainless steel sleeve and the support.

2. The electronic ignition coil for improving accuracy of flash point value test according to claim 1, characterized by, The center of the spiral part is connected with the support.

3. The electronic ignition coil for improving accuracy of flash point value testing of claim 1, wherein, The outer lead is connected with the stainless steel sleeve.

4. The electronic ignition coil to improve the accuracy of the flash point value test according to claim 1, characterized in that, The diameter of the platinum wire is 0.2-1.0 mm.

5. The electronic ignition coil to improve the accuracy of flash point value test according to claim 1, characterized in that, The platinum wire is coiled 1-8 turns.

6. The electronic ignition coil to improve the accuracy of flash point value test according to claim 1, characterized in that, The first angle is 10-90°.

7. The electronic ignition coil to improve the accuracy of flash point value test according to claim 1, characterized in that, The second angle is 10-75°.

8. The electronic ignition coil to improve the accuracy of flash point value test according to claim 1, characterized in that, The distance between the edges of adjacent platinum wire coils is 0.2-2.0 mm.

9. The electronic ignition coil to improve the accuracy of flash point value test according to claim 1, characterized in that, The diameter of the innermost coil of the spiral part is 0.2-3 mm.

10. The electronic ignition coil to improve the accuracy of flash point value test according to claim 1, characterized in that, The diameter of the outermost coil of the spiral part is 2.0-10 mm.

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