Atomized heptane calibrator structure for lithium battery test

Abstract

The invention relates to an atomized heptane calibrator structure for lithium battery testing, which comprises a booster pump, an infusion tube I, a box body I, a handle, a manual ball valve, a pressure reducing valve, a heptane mass flowmeter, a fuel tank, a spray head, an infusion tube II, a support frame, an infusion tube III, a box body II and a box cover, the infusion tube I is fixedly connected with the manual ball valve, the pressure reducing valve and the heptane mass flow meter in sequence, and the supporting frame is welded to the center of the surface of the infusion tube II; the liquid conveying pipe III is fixedly connected to the bottom of the fuel tank, the manual ball valve, the pressure reducing valve and the heptane mass flow meter are arranged in the box body I. The handle is welded to the surface of the box body I. The fuel tank is composed of a box body II and a box cover, and the four corners of the surface of a bottom plate are each fixedly provided with a universal wheel. The output of each grade of standard fire source can be realized by a movable, atomized and adjustable combustion flame power standard structure, so that the calorimetric accuracy of various different grades of calorimetric systems can be calibrated.

Description

Technical Field

[0001] The invention relates to a calibrator structure, in particular to an atomized heptane calibrator structure for lithium battery testing. Background Art

[0002] With the progress and development of society, people are paying more and more attention to safety, and various safety fire detection equipment have emerged. At present, various calorimetric performance detection equipment has been established for safety detection projects such as various fireproof materials, wires and cables, lithium batteries and energy storage fire assessments, which are used to record various data on the occurrence of flames and then evaluate the fire hazards. However, for the calorimetric accuracy detection of large-scale calorimetric detection equipment, there is no standard fire source and the stability of large-scale fire sources cannot be effectively controlled. At present, there is still no unified standard equipment to verify the calorimetric accuracy of calorimetric equipment, and the existing verification calorimetric equipment and technology have the following disadvantages: (1) Different sizes of oil pans are used to inject different masses of fuel to simulate the combustion of standard fire sources. However, the mass of fuel burning in the oil pan is inconsistent per unit time, which will cause unstable fire source output and a deviation of about 10% in the test results. In addition, for larger-scale calorimetric systems, the size of the oil pan will far exceed the actual site usage requirements, which has certain limitations. (2) Propane is used as the combustion gas source. The propane gas flow is controlled to simulate different levels of flames for equipment calibration. When a propane burner is used for calibration, a stable output can be achieved under a small calorimetric system within 500KW. When the calorimetric system becomes larger, the demand for gas increases sharply. In order to meet the gas flow output, a gasifier and other structures are required to speed up the gasification rate to meet the usage requirements. If a large flow of gas is used and leakage occurs, it will cause safety hazards; (3) By purchasing standard calorific value materials, such as wood piles, burning trees and other materials, combustion calibration is carried out. However, standard combustion materials are expensive and only have a single flame standard, which cannot meet the testing needs in various scenarios. They also require manual ignition, which poses a safety hazard. Summary of the invention

[0003] In view of the problems existing in the above-mentioned prior art, the present invention provides a structure of an atomized heptane calibrator for lithium battery testing, including: a booster pump, a first infusion tube, a first box body, a handle, a manual ball valve, a pressure reducing valve, a heptane mass flowmeter, a fuel tank, a nozzle, a second infusion tube, a support frame, a third infusion tube, a second box body and a box cover. The first infusion tube and the third infusion tube are fixedly connected to the booster pump. The first infusion tube is fixedly connected to the manual ball valve, the pressure reducing valve and the heptane mass flowmeter in sequence. The end of the first infusion tube is fixedly connected to the "field"-shaped second infusion tube. A plurality of nozzles are fixedly installed on the surface of the second infusion tube. The support frame is welded to the center of the surface of the second infusion tube. The third infusion tube is fixedly connected to the bottom of the fuel tank. The manual ball valve, the pressure reducing valve and the heptane mass flowmeter are inside the first box body. The handle is welded to the surface of the first box body. The fuel tank is composed of the second box body and the box cover. The first box body and the fuel tank are fixed on the bottom plate. A universal wheel is fixedly installed at each of the four corners of the surface of the bottom plate.

[0004] As a further improvement of the present invention, the first infusion tube, the second infusion tube and the third infusion tube have the same specification size.

[0005] As a further improvement of the present invention, the material of the fuel tank is stainless steel.

[0006] As a further improvement of the present invention, a remote ignition controller is installed inside the first box body. The remote ignition controller is connected to the ignition pack through an electric wire. The ignition pack is connected to the ignition needle through an electric wire. An ignition needle is fixedly installed beside each nozzle.

[0007] As a further improvement of the present invention, the remote ignition controller controls the switches of the ignition pack and the ignition needle.

[0008] The operation steps of the structure of the atomized heptane calibrator for lithium battery testing are as follows: ① Open the box cover to check the heptane capacity in the fuel tank. 100 Kg of heptane needs to be placed in the fuel tank as the experimental standard; ② Check and adjust whether the booster pump, the manual ball valve, the pressure reducing valve and the heptane mass flowmeter can work normally; ③ Manually add a part of heptane fuel into the booster pump for drainage; ④ Connect the first end of the third infusion tube to the booster pump, and connect the second end of the third infusion tube inside the fuel tank; ⑤ Connect the first end of the first infusion tube to the booster pump. The first infusion tube is connected to the manual ball valve, the pressure reducing valve and the heptane mass flowmeter in sequence. The second end of the first infusion tube is connected to the second infusion tube; ⑥ Arrange the principle of the atomized heptane combustion control system on the support frame; ⑦ After all conditions are prepared, turn on the booster pump, and press the "heptane" button. The remote ignition controller automatically ignites, and the nozzle (9) sprays the atomized heptane; ⑨ The alkane flow rate of the test preset value can be set in the debugging interface of the software interface (the setting range is 0-80g / s, the range is subject to the actual situation) and wait for the ignition to be completed; ⑩ After the combustion test is completed, the heptane liquid in infusion tubes Ⅰ, Ⅱ and Ⅲ must be emptied to prevent safety hazards.

[0009] Through the above scheme, the present invention has at least the following advantages: liquid fuel such as heptane is used as fuel for output to ensure the safety of fuel transportation, storage and use, and the price is low, the use is unlimited, and it is applicable to multiple scenarios; the present invention has multiple structures such as built-in fuel storage box, booster pump, atomizing burner, etc., and the structures can be freely moved and disassembled to meet the use requirements under various working conditions; the present invention provides a set of liquid flow pressure regulation and flow regulation structure, and the structure has the characteristics of corrosion resistance, etc., which can be applied to various different liquid fuels such as heptane, methanol, ethanol, etc. Because the present structure is equipped with a high-precision liquid flow regulation structure, under the premise of knowing the standard calorific value of the liquid fuel, The flow output size can be automatically set through software to meet the needs of multi-gradient combustion tests; the present invention provides a set of automatic remote ignition equipment, which can control the high-voltage ignition package to generate sparks to ignite the atomized liquid fuel, avoiding the potential safety hazards of manual ignition; the present invention provides a nozzle for use as a burner, and the burner atomizing nozzle can be adjusted according to different scenarios to ensure that the atomized liquid fuel can be fully burned; the present invention provides a set of movable portable carts, all calibration structures can be arranged on the cart, and it is convenient to use; the present invention has a built-in automated equipment design program to realize functions such as ignition, flow regulation and feedback, and safety detection, and has a high degree of automation. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0011] Figure 1 It is a three-dimensional schematic diagram of the structure of an atomized heptane calibrator for lithium battery testing; Figure 2 It is a partial schematic diagram of the structure of an atomized heptane calibrator for lithium battery testing; Figure 3 It is a schematic diagram of the automatic remote ignition device; Figure 4 It is a line segment experiment test diagram of embodiment 1; Figure 5 It is the line segment experiment test diagram of the second embodiment; In the figure: 1. Booster pump, 2. Infusion tube I, 3. Box body I, 4. Handle, 5. Manual ball valve, 6. Pressure reducing valve, 7. Heptane mass flow meter, 8. Fuel tank, 9. Nozzle, 10. Infusion tube II, 11. Support frame, 12. Infusion tube III, 13. Box body II, 14. Box cover, 15. Remote ignition controller, 16. Ignition package, 17. Ignition needle. DETAILED DESCRIPTION

[0012] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0013] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the structure or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, in the description of this specification, the terms "first" and "second" are used only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0014] The structure of an atomized heptane calibrator for lithium battery testing of the present invention is described below in conjunction with the accompanying drawings.

[0015] like Figure 1 and Figure 2As shown, a structure of an atomized heptane calibrator for lithium battery testing can be applied to any region without being restricted by the environment. In order to achieve its purpose, a universal wheel is fixedly installed at each of the four corners of the bottom plate surface, and a handle 4 is welded on the surface of the box body Ⅰ3, so that the movement of the box body Ⅰ3 and the fuel tank 8 can be more conveniently promoted. The configured liquid booster pump 1 and the internal sealing ring have corrosion resistance and softening resistance effects, the power supply voltage is AC220V, the maximum boost is 0.5Mpa, the configured pressure reducing valve 6 and heptane mass flowmeter 7 can control the parameters of pressure and flow, and the maximum flow meets the 5MW (customizable) test requirements. In actual operation, the nozzle 9 on the infusion tube Ⅱ10 can choose to open different numbers of atomizing nozzles 9 according to needs, and the spray effect of the nozzle 9 can be selected according to needs, and the size of the infusion tube Ⅱ10 can also be changed according to needs. The material of the fuel tank 8 is stainless steel, which can effectively prevent heptane from corroding objects.

[0016] like Figure 3 As shown, the automatic remote ignition device provided by this structure is a remote ignition controller 15 that controls an ignition package 16 and an ignition needle 17. The remote ignition controller 15 can be used to control the high-voltage ignition package to generate sparks to ignite atomized liquid fuel, avoiding potential safety hazards of manual ignition.

[0017] When the present invention is used, the specific operation is as follows: ① Open the tank cover 14 to check the heptane capacity in the fuel tank 8. 100 kg of heptane needs to be placed in the fuel tank 8 as the experimental standard; ② Check whether the booster pump 1, manual ball valve 5, pressure reducing valve 6 and heptane mass flow meter 7 can work normally; ③ Manually add a portion of heptane fuel into the booster pump 1 for drainage; ④ The first end of the liquid infusion tube III 12 is connected to the booster pump 1, and the end of the liquid infusion tube III 12 is connected to the fuel tank 8; ⑤ The head end of the infusion tube Ⅰ2 is connected to the booster pump 1, the infusion tube Ⅰ2 is connected to the manual ball valve 5, the pressure reducing valve 6 and the heptane mass flow meter 7 in sequence, and the end of the infusion tube Ⅰ2 is connected to the infusion tube Ⅱ10; ⑥ Arrange the principle atomized heptane combustion control system on the support frame 11; ⑦ After all conditions are prepared, turn on the booster pump 1, and press the "heptane" button, the remote ignition controller 15 automatically ignites, and the nozzle 9 sprays the atomized heptane; ⑨ The alkane flow rate of the test preset value can be set in the debugging interface of the software interface (the setting range is 0-80g / s, the range is subject to the actual situation) and wait for the ignition to be completed; ⑩ After the combustion test, configure the host computer test software to realize different gradient calorimetric combustion tests. The data can be displayed online and exported to various formats such as Word, Excel, PDF, etc. Finally, the heptane liquid in the infusion tube Ⅰ2, infusion tube Ⅱ10 and infusion tube Ⅲ12 needs to be emptied to prevent safety hazards.

[0018] The patent of this invention aims at the pain point that the calorimetric test equipment structure has no standard calibration verification structure. Based on the principle of convenience for customers and providing customers with reliable verification test data, this atomizing burner is developed and designed. Because of its characteristics such as convenience of installation, carrying and use, it has been successfully applied to many test products since its design and development. As a calibration slave station, this structure can be connected to different systems by communication. At present, it has been successfully applied to the traditional wire and cable industry, lithium battery energy storage system industry and large-scale fire test industry. Embodiment 1

[0019] The experimental test flame power is 2MW and 1MW. First, check the heptane capacity in the fuel tank 8, adjust the parameters of the boost pump 1, manual ball valve 5, pressure reducing valve 6 and heptane mass flowmeter 7, check the remote ignition controller 15, control the ignition package 16 and the ignition needle 17 to see if they can work normally, manually add a portion of heptane fuel to the boost pump 1 for drainage, turn on the boost pump 1, and press the "heptane" button. The remote ignition controller 15 automatically ignites, and the nozzle 9 sprays the atomized heptane. Finally, configure the host computer test software to realize different gradient calorimetric combustion tests. The data can be displayed online and can be exported to multiple formats such as Word, Excel, PDF, etc. Embodiment 2

[0020] The flame power of the experimental test is 3mw. First, check the heptane capacity in the fuel tank 8, adjust the parameters of the boost pump 1, manual ball valve 5, pressure reducing valve 6 and heptane mass flowmeter 7, check that the remote ignition controller 15, control the ignition package 16 and the ignition needle 17 can work normally, manually add a part of the heptane fuel to the boost pump 1 for drainage, turn on the boost pump 1, and press the "heptane" button. The remote ignition controller 15 automatically ignites, and the nozzle 9 sprays the atomized heptane. Finally, configure the host computer test software to realize different gradient calorimetric combustion tests. The data can be displayed online and can be exported to various formats such as Word, Excel, PDF, etc.

[0021] In summary, an atomized heptane calibrator structure for lithium battery testing in an embodiment of the present invention can make the squeezing more uniform by adjusting the installation method of the squeezing rollers 3-5, and at the same time, the edges of the plate strip are sprayed with the help of the side blowing mechanism 2 with adjustable spacing arranged on both sides of the plate strip, so as to process the edges of the plate strip and effectively prevent water stains from appearing on the edges of the plate strip, thereby ensuring the normal progress of subsequent processing processes.

[0022] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0023] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0024] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0025] Those skilled in the art should understand that the discussion of any of the above embodiments is only exemplary and is not intended to imply that the scope of the present invention is limited to these examples; under the concept of the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes in different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity. Any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A structure of atomized heptane calibrator for lithium battery testing, comprising: A booster pump (1), an infusion pipe I (2), a box body I (3), a handle (4), a manual ball valve (5), a pressure reducing valve (6), a heptane mass flowmeter (7), a fuel tank (8), a nozzle (9), an infusion pipe II (10), a support frame (11), an infusion pipe III (12), a box body II (13) and a box cover (14), characterized in that the infusion pipe I (2) and the infusion pipe III (12) are fixedly connected to the booster pump (1), the infusion pipe I (2) is fixedly connected to the manual ball valve (5), the pressure reducing valve (6) and the heptane mass flowmeter (7) in sequence, the end of the infusion pipe I (2) is fixedly connected to the "field"-shaped infusion pipe II (10), several nozzles (9) are fixedly installed on the surface of the infusion pipe II (10), and the support frame (11) is welded to the center of the surface of the infusion pipe II (10); the infusion pipe III (12) is fixedly connected to the bottom of the fuel tank (8), the manual ball valve (5), the pressure reducing valve (6) and the heptane mass flowmeter (7) are inside the box body I (3), the handle (4) is welded to the surface of the box body I (3), the fuel tank (8) is composed of the box body II (13) and the box cover (14), the box body I (3) and the fuel tank (8) are fixed on the bottom plate, and a universal wheel is fixedly installed at each of the four corners of the surface of the bottom plate.

2. The atomized heptane calibrator structure for lithium battery testing according to claim 1, characterized in that: The infusion pipe I (2), the infusion pipe II (10) and the infusion pipe III (12) have the same specifications and dimensions.

3. The atomized heptane calibrator structure for lithium battery testing according to claim 2, characterized in that: The material of the fuel tank (8) is stainless steel.

4. The atomized heptane calibrator structure for lithium battery testing according to claim 1, characterized in that: A remote ignition controller (15) is installed inside the box body I (3), the remote ignition controller (15) is connected to the ignition pack (16) through an electric wire, the ignition pack (16) is connected to the ignition needle (17) through an electric wire, and an ignition needle (17) is fixedly installed beside each nozzle (9).

5. The atomized heptane calibrator structure for lithium battery testing according to claim 4, characterized in that: The remote ignition controller (15) controls the switches of the ignition pack (16) and the ignition needle (17).

6. The structure of an atomized heptane calibrator for lithium battery testing according to claim 1, and the operation steps are as follows: ① Open the box cover (14) to check the heptane capacity in the fuel tank (8), and 100 Kg of heptane needs to be placed in the fuel tank (8) as the experimental standard; ② Check and adjust whether the booster pump (1), the manual ball valve (5), the pressure reducing valve (6) and the heptane mass flowmeter (7) can work normally; ③ Manually add a part of heptane fuel into the booster pump (1) for drainage; ④ The first end of the infusion pipe III (12) is connected to the booster pump (1), and the second end of the infusion pipe III (12) is connected inside the fuel tank (8); ⑤ The first end of the infusion pipe I (2) is connected to the booster pump (1), the infusion pipe I (2) is connected to the manual ball valve (5), the pressure reducing valve (6) and the heptane mass flowmeter (7) in sequence, and the second end of the infusion pipe I (2) is connected to the infusion pipe II (10); ⑥ Arrange the principle of the atomized heptane combustion control system on the support frame (11); ⑦ After all conditions are prepared, turn on the booster pump (1), and press the "heptane" button, the remote ignition controller (15) automatically ignites, and the nozzle (9) sprays the atomized heptane; ⑨ The alkane flow rate of the test preset value can be set in the debugging interface of the software interface (the setting range is 0-80g / s, the range is subject to the actual situation) and wait for the ignition to be completed; ⑩ After the combustion test is completed, the heptane liquid in the infusion tube I (2), the infusion tube II (10) and the infusion tube III (12) must be emptied to prevent safety hazards.

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