Oxygen bomb

Abstract

The utility model relates to the technical field of calorimeters, and provides an oxygen bomb. The oxygen bomb comprises a bomb cylinder, a cover body and a bomb core. A cavity is formed in the cartridge; the cover body is detachably connected with the cartridge; the elastic core is arranged in the cavity through the cover body; the bullet core comprises a first conductive part, a second conductive part, a conductive piece and an ignition wire, and an insulating piece is arranged between the first conductive part and the second conductive part; the conductive part is electrically connected with the ignition wire, the conductive part is arranged on one side in the cavity and electrically connected with the first conductive part, the ignition wire is electrically connected with the second conductive part, and the ignition wire is provided with a cotton thread clamping groove. The oxygen bomb overcomes the defect that in the prior art, cotton threads of an oxygen bomb need to be knotted on a resistance wire to be fixed, so that the cotton threads are quite inconvenient to fix, the oxygen bomb can simplify the fixing mode of the cotton threads, and powerful guarantee is provided for achieving automatic cotton thread fixing.

Description

Technical Field

[0001] The utility model relates to the technical field of calorimeters, in particular to an oxygen bomb. Background Art

[0002] Oxygen bombs are mainly used in calorimeters (also called calorimeters) as their core components. Oxygen bombs are containers made of heat-resistant and corrosion-resistant nickel-chromium or nickel-chromium-molybdenum alloy steel. Oxygen bombs act as combustion chambers in calorimeters and are used to measure the heat released by substances during combustion.

[0003] The cotton thread ignition oxygen bomb technology is a technology used to ignite samples in combustion experiments. This technology uses the resistance wire to heat up and ignite the cotton thread, and then uses the cotton thread to ignite the sample. However, this ignition method requires hanging cotton thread in each test.

[0004] The existing oxygen bomb needs to be fixed by tying the cotton thread on the resistance wire. This method makes the cotton thread fixation very inconvenient and it is difficult to realize automatic fixation of the cotton thread. Utility Model Content

[0005] The utility model provides an oxygen bomb, which is used to solve the defect in the prior art that the cotton thread of the oxygen bomb needs to be knotted on a resistance wire to fix the cotton thread, thereby causing great inconvenience in fixing the cotton thread, and realizes an oxygen bomb that can simplify the fixing method of the cotton thread, thereby providing a strong guarantee for realizing automatic fixing of the cotton thread.

[0006] The utility model provides an oxygen bomb, comprising a bomb barrel, a cover body and a bomb core. The bomb barrel has a cavity inside; the cover body is detachably connected to the bomb barrel; the bomb core is arranged in the cavity through the cover body; the bomb core comprises a first conductive part, a second conductive part, a conductive member and an ignition wire, an insulating member is arranged between the first conductive part and the second conductive part; the conductive member is electrically connected to the ignition wire, the conductive member is arranged at one side of the cavity and is electrically connected to the first conductive part, the ignition wire is electrically connected to the second conductive part, and the ignition wire is provided with a cotton thread clamping groove.

[0007] According to an oxygen bomb provided by the utility model, the bomb core also includes a check valve, which is used to control the gas entering the cavity. A buffer cover is provided at the bottom of the check valve, and a breathable pad is provided at the opening of the buffer cover. The gas inside the buffer cover flows to the outside of the buffer cover through the breathable pad.

[0008] According to an oxygen bomb provided by the utility model, a baffle is provided at the bottom of the buffer cover, and a gap is provided between the baffle and the inner wall of the cavity, and the gap is used to guide the gas.

[0009] According to an oxygen bomb provided by the utility model, the bomb core further comprises a lead wire, one end of which is connected to the cotton thread slot.

[0010] According to an oxygen bomb provided by the utility model, a combustion dish is provided below the lead, and the combustion dish is used for containing fuel.

[0011] According to an oxygen bomb provided by the utility model, the check valve includes a valve core and a valve body, the valve core penetrates the valve body, and the valve body is arranged on the top of the bomb cylinder through the cover body; wherein the valve core constitutes the second conductive part, and the valve body constitutes the first conductive part.

[0012] According to an oxygen bomb provided by the utility model, the insulating member comprises a first sealing pad and an insulating pad, and the first sealing pad and the insulating pad are arranged in sequence from top to bottom between the valve core and the valve body.

[0013] According to an oxygen bomb provided by the utility model, a pressure ring and a first sealing ring are sequentially arranged between the valve body and the bomb barrel from top to bottom, the cover body is sleeved on the outside of the valve body and is threadedly connected to the bomb barrel, and the cover body is in contact with the pressure ring.

[0014] According to an oxygen bomb provided by the utility model, the bomb core also includes an oxygen bomb head, the oxygen bomb head is sleeved outside the valve core and is detachably connected to the valve body, a second sealing ring is provided between the oxygen bomb head and the valve core, and a second sealing gasket is provided between the oxygen bomb head and the valve body.

[0015] According to an oxygen bomb provided by the utility model, the outer wall of the cover body is provided with at least one pin.

[0016] The utility model changes the position of the conductive part, changes the two electrodes respectively arranged at the center of the oxygen bomb to a single-side arrangement of the conductive part at the center of the oxygen bomb, and connects the ignition wire with the conductive part, so that the cotton thread can be reserved on the ignition wire to be automatically hung in position. Furthermore, the utility model also provides a cotton thread slot on the ignition wire, which greatly facilitates the connection of the cotton thread, avoids the disadvantage of the existing technology that requires knotting for connection, simplifies the connection method, and provides convenience for the automatic fixation of the cotton thread. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 It is a cross-sectional view of the oxygen bomb provided by the utility model.

[0019] Figure 2 This is one of the structural schematic diagrams of the ignition wire of the oxygen bomb provided by the utility model.

[0020] Figure 3 This is the second structural schematic diagram of the ignition wire of the oxygen bomb provided by the utility model.

[0021] Figure numerals: 100: cartridge; 200: cover body; 300: core; 310: oxygen warhead; 320: check valve; 321: valve core; 322: valve body; 330: buffer cover; 340: baffle; 350: conductive part; 360: ignition wire; 370: lead wire; 380: combustion dish; 410: second sealing ring; 420: second sealing gasket; 430: first sealing gasket; 440: insulating gasket; 450: pin; 460: pressure ring; 470: first sealing ring; 480: third sealing gasket; 490: limiting ring; 411: air-permeable pad; 412: fourth sealing gasket. DETAILED DESCRIPTION

[0022] The following is a further detailed description of the implementation of the present utility model in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0023] In the description of the embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device 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 embodiments of the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0024] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" 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 directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0025] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0026] 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 utility model embodiment. 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, without contradiction.

[0027] The design of the oxygen bomb needs to meet three main performance requirements: first, it must be able to withstand the high temperature and corrosive products that occur during the combustion process without causing thermal effects; second, the oxygen bomb needs to be able to withstand the oxygen filling pressure and the instantaneous high pressure generated during the combustion process; finally, the oxygen bomb must remain completely airtight during the test to ensure the accuracy of the measurement results. However, due to the frequent testing of the oxygen bomb, some parts may be damaged, such as deep corrosion on the inner surface of the bomb cup, loose threads, loose threads on the bomb cover, etc. These problems may affect the safety and accuracy of the test. Therefore, the oxygen bomb must undergo necessary safety tests to ensure the safety of the test personnel and the safety of national property.

[0028] The cotton thread ignition oxygen bomb technology uses a resistance wire to generate heat to ignite the cotton thread, and then uses the cotton thread to ignite the sample. This ignition method is common in combustion analysis experiments, especially when measuring parameters such as sample heat. In the oxygen bomb technology, the sample to be tested is usually placed in the oxygen bomb, and then the sample is ignited by a specific ignition method. Compared with other ignition methods (such as ignition wire fusing ignition), the cotton thread ignition method has its unique advantages and application scenarios. However, the existing oxygen bomb is provided with two electrodes, and the two electrodes are respectively arranged on both sides of the inside of the bomb barrel, and then the two electrodes are connected by an ignition wire, and then the cotton thread is connected to the ignition wire by knotting. This method is relatively complicated and difficult to implement, and it is difficult to achieve automatic connection of the cotton thread. Reference Figures 1 to 3 The utility model provides an oxygen bomb which can solve the technical problem.

[0029] Figure 1 The cross-sectional view of the oxygen bomb provided by the embodiment of the utility model is illustrated. Figure 2 One of the structural schematic diagrams of the ignition wire of the oxygen bomb provided in the embodiment of the utility model is illustrated. Figure 3 The second structural schematic diagram of the ignition wire of the oxygen bomb provided in the embodiment of the utility model is illustrated.

[0030] Reference Figure 1 The oxygen bomb includes a cartridge 100, a cover 200 and a core 300. The cartridge 100 has a cavity inside; the cover 200 is detachably connected to the cartridge 100; the core 300 is arranged in the cavity through the cover 200; the core 300 includes a first conductive part, a second conductive part, a conductive member 350 and an ignition wire 360, and an insulating member is arranged between the first conductive part and the second conductive part; the conductive member 350 and the ignition wire 360 ​​are electrically connected, the conductive member 350 is arranged on one side of the cavity and is electrically connected to the first conductive part, the ignition wire 360 ​​is electrically connected to the second conductive part, and the ignition wire 360 ​​is provided with a cotton thread slot.

[0031] The utility model changes the position of the conductive member 350, changes the two electrodes respectively arranged at the center of the oxygen bomb to a single-side arrangement of the conductive member 350 at the center of the oxygen bomb, and connects the ignition wire 360 ​​with the conductive member 350, so that the cotton thread can be reserved on the ignition wire 360 ​​to be automatically hung in position. Furthermore, the utility model also provides a cotton thread slot on the ignition wire 360, which greatly facilitates the connection of the cotton thread, avoids the disadvantage of the existing technology that requires knotting for connection, simplifies the connection method, and provides convenience for the automatic fixation of the cotton thread.

[0032] In the above structure, the conductive member 350 and the ignition wire 360 ​​are both conductors, and the cotton thread mainly serves as a lead. The first conductive part, the second conductive part, the conductive member 350 and the ignition wire 360 ​​are connected to each other to form a wire. When it is necessary to ignite it, the first conductive part and the second conductive part can be energized, so that the ignition wire 360 ​​is heated and heated. When the temperature reaches a certain level, the cotton thread is ignited.

[0033] Reference Figure 2 In some embodiments of the present invention, the cotton thread groove may be a V-shaped structure. The V-shaped groove can better fix the cotton thread, prevent the cotton thread from slipping or moving during the ignition process, and ensure the stability and reliability of the ignition process. Figure 3In some other embodiments of the present invention, the cotton thread slot may be a spiral structure. The spiral structure design can provide multiple cotton thread fixing positions, effectively utilizing space in a limited space. In some further embodiments of the present invention, the cotton thread slot may be a U-shaped structure.

[0034] Reference Figure 1 In some embodiments of the utility model, the core 300 also includes a check valve 320, which is used to control the gas entering the cavity. A buffer cover 330 is provided at the bottom of the check valve 320, and a breathable pad 411 is provided at the opening of the buffer cover 330. The gas inside the buffer cover 330 flows to the outside of the buffer cover 330 through the breathable pad 411.

[0035] Specifically, the buffer cover 330 is a U-shaped structure, and the opening of the buffer cover 330 is arranged upward at the bottom end of the check valve 320, and the outlet of the check valve 320 extends to the bottom wall of the buffer cover 330, and a gap is provided between the bottom wall to ensure that the gas can circulate. Specifically, it also includes a third sealing gasket 480 and a limit ring 490. The third sealing gasket 480, the limit ring 490 and the air-permeable pad 411 are arranged in sequence from top to bottom between the buffer cover 330 and the check valve 320, and the third sealing gasket 480, the limit ring 490 and the air-permeable pad 411 are sequentially sleeved on the outside of the valve core 321. By providing the air-permeable pad 411, the speed of the gas can be slowed down, thereby reducing the impact force of the airflow, and avoiding the cotton thread from falling off due to excessive airflow. Specifically, the bottom of the buffer cover 330 is detachably connected to the check valve 320 by bolts, and a fourth sealing gasket 412 is provided between the buffer cover 330 and the check valve 320.

[0036] In some possible embodiments, a baffle 340 is provided at the bottom of the buffer cover 330, and the baffle 340 may be formed integrally with the buffer cover 330. A gap is provided between the baffle 340 and the inner wall of the cavity, and the gap is used to guide the gas. The baffle 340 is specifically a plate-like structure, and its shape is adapted to the cross-section of the cavity. For example, if the cavity is a cylindrical structure, the baffle 340 is a circular structure. The buffer cover 330 and the baffle 340 can be connected to the check valve 320 by bolts.

[0037] In the above structure, the check valve 320 can ensure that the gas flows in one direction and prevents the gas from flowing back, thus ensuring the stability and safety of the oxygen bomb. Secondly, after the cotton thread is hung, 3MPa high-pressure oxygen needs to be filled into the cavity through the check valve 320 to assist combustion. The oxygen pressure is high and the flow rate is fast. The hung cotton thread is easily blown out of the fuel container under the impact of high-pressure oxygen and high flow rate, resulting in ignition failure. Figure 1 As shown by the arrow in , it indicates the flow direction of oxygen.

[0038] In this embodiment, a buffer cover 330 is provided at the bottom of the check valve 320. When oxygen is flushed into the interior of the cartridge 100, the oxygen enters through the inlet of the check valve 320, passes through the flow channel inside the check valve 320, and is finally discharged from the outlet of the check valve 320. The discharged oxygen first touches the bottom wall of the buffer cover 330. Under the action of the bottom wall of the buffer cover 330, the oxygen moves upward, and then touches the check valve 320 through the opening of the buffer cover 330 and rebounds a second time, so that the oxygen moves downward. When the oxygen continues to move downward, it will touch the baffle 340. Since there is a gap between the baffle 340 and the inner wall of the cavity, the oxygen will move downward close to the inner wall of the cavity, thereby preventing the oxygen from being blown directly onto the cotton thread and causing the cotton thread to fall off. The buffer cover 330 can change the direction of the airflow, slow down the gas flow rate, reduce the impact of the gas on the cotton thread, etc., and can effectively maintain the initial state of the cotton thread and prevent the cotton thread from being blown out of the fuel container. Refer to Figure 1 In some embodiments of the present invention, the core 300 further includes a lead wire 370, one end of which is connected to the cotton thread slot. A combustion dish 380 is provided below the lead wire 370, and the combustion dish 380 is used to hold fuel.

[0039] Specifically, the bottom end of the cotton thread can extend into the fuel inside the combustion dish 380 and contact the fuel. The combustion dish 380 is made of heat-resistant and corrosion-resistant materials, such as nickel-chromium-molybdenum alloy steel, to ensure that its stability and strength can be maintained under high temperature and corrosive environment. The combustion dish 380 can be a U-shaped structure with a flat bottom. Its capacity can be determined according to actual needs. The top of the combustion dish 380 is provided with an opening for placing fuel and lead 370. In some possible embodiments, the material of the combustion dish 380 can also be quartz glass and ceramics. Quartz and ceramic glass have extremely high heat resistance and chemical stability, which can ensure the normal combustion of fuel.

[0040] In some possible embodiments, a handle is fixedly mounted on one side of the combustion dish 380, and the other end of the handle is connected to the conductive member 350. The other end of the handle may also be fixedly connected to the inner wall of the cartridge 100, or the combustion dish 380 may be placed at the bottom of the cavity. The fixing method of the combustion dish 380 may not be specifically limited, as long as the lead 370 can accurately fall into it after burning.

[0041] Reference Figure 1In some embodiments of the utility model, the check valve 320 includes a valve core 321 and a valve body 322, the valve core 321 penetrates the valve body 322, and the valve body 322 is arranged on the top of the cartridge 100 through the cover body 200; wherein the valve core 321 constitutes the second conductive part, and the valve body 322 constitutes the first conductive part. The insulating member includes a first sealing gasket 430 and an insulating gasket 440, which are sequentially arranged between the valve core 321 and the valve body 322 from top to bottom. Specifically, the first sealing gasket 430 and the insulating gasket 440 are sequentially sleeved on the outside of 311, and the first sealing gasket 430 and the insulating gasket 440 can play the role of sealing and insulation. Prevent the valve core 321 and the valve body 322 from being energized and causing a short circuit.

[0042] Reference Figure 1 In some embodiments of the present invention, a pressure ring 460 and a first sealing ring 470 are provided between the valve body 322 and the cartridge 100 from top to bottom, the cover body 200 is sleeved on the outside of the valve body 322 and is threadedly connected to the cartridge 100, and the cover body 200 is in contact with the pressure ring 460.

[0043] Specifically, a groove is provided on the outside of the valve body 322, and the pressure ring 460 and the first sealing ring 470 are sleeved on the groove, and the groove can limit the pressure ring 460 and the first sealing ring 470. The pressure ring 460 and the first sealing ring 470 can play a role of sealing and buffering, so that the connection between the cover body 200 and the valve body 322 is tighter. The cover body 200 and the cartridge 100 can be threadedly connected. When the party assembles the check valve 320, the cartridge 100 and the cover body 200, the pressure ring 460 and the first sealing ring 470 can be sleeved on the groove first, and then the check valve 320 can be clamped at the top opening of the cartridge 100, and then the hole in the middle of the cover body 200 passes through the valve body 322, and is threadedly connected with the cartridge 100, so that the check valve 320 is fixed to the opening of the cartridge 100.

[0044] Reference Figure 1 In some embodiments of the utility model, the core 300 further includes an oxygen bullet 310, which is sleeved on the outside of the valve core 321 and detachably connected to the valve body 322. A second sealing ring 410 is provided between the oxygen bullet 310 and the valve core 321, and a second sealing gasket 420 is provided between the oxygen bullet 310 and the valve body 322. Specifically, during installation, the valve core 321 is sleeved on the valve body 322 and passed through the central hole of the oxygen bullet 310, and the oxygen bullet 310 and the valve body 322 are connected by threads.

[0045] Reference Figure 1In some embodiments of the present invention, at least one pin 450 is provided on the outer wall of the cover 200. The pin 450 is used for the automatic clamp to unscrew or tighten the threaded connection between the cartridge 100 and the cover 200. Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention, rather than to limit it. Although the present invention is described in detail with reference to the above embodiments, a person skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some of the technical features can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An oxygen bomb, characterized in that: include: A cartridge (100) having a cavity therein; A cover body (200) detachably connected to the cartridge (100); The elastic core (300) is arranged in the cavity through the cover body (200); the elastic core (300) comprises a first conductive part, a second conductive part, a conductive member (350) and an ignition wire (360), and an insulating member is provided between the first conductive part and the second conductive part; the conductive member (350) and the ignition wire (360) are electrically connected, the conductive member (350) is arranged on one side of the cavity and is electrically connected to the first conductive part, the ignition wire (360) is electrically connected to the second conductive part, and the ignition wire (360) is provided with a cotton thread slot.

2. The oxygen bomb according to claim 1, characterized in that The elastic core (300) further comprises a check valve (320), wherein the check valve (320) is used to control the gas from entering the cavity; a buffer cover (330) is provided at the bottom of the check valve (320); a breathable pad (411) is provided at the opening of the buffer cover (330); and the gas inside the buffer cover (330) flows to the outside of the buffer cover (330) through the breathable pad (411).

3. The oxygen bomb according to claim 2, characterized in that A baffle plate (340) is provided at the bottom of the buffer cover (330), and a gap is provided between the baffle plate (340) and the inner wall of the cavity, the gap being used to guide the gas.

4. The oxygen bomb according to claim 3, characterized in that The elastic core (300) further comprises a lead wire (370), one end of the lead wire (370) being connected to the cotton thread slot.

5. The oxygen bomb according to claim 4, characterized in that A combustion dish (380) is provided below the lead (370), and the combustion dish (380) is used to hold fuel.

6. The oxygen bomb according to any one of claims 2 to 5, characterized in that The check valve (320) comprises a valve core (321) and a valve body (322), wherein the valve core (321) passes through the valve body (322), and the valve body (322) is disposed on the top of the cartridge (100) through the cover body (200); wherein the valve core (321) constitutes the second conductive portion, and the valve body (322) constitutes the first conductive portion.

7. The oxygen bomb according to claim 6, characterized in that The insulating member comprises a first sealing gasket (430) and an insulating gasket (440), wherein the first sealing gasket (430) and the insulating gasket (440) are arranged in sequence from top to bottom between the valve core (321) and the valve body (322).

8. The oxygen bomb according to claim 6, characterized in that A pressure ring (460) and a first sealing ring (470) are provided between the valve body (322) and the cartridge (100) from top to bottom, the cover body (200) is sleeved on the outside of the valve body (322) and is threadedly connected to the cartridge (100), and the cover body (200) is in contact connection with the pressure ring (460).

9. The oxygen bomb according to claim 6, characterized in that The core (300) further comprises an oxygen bullet (310), the oxygen bullet (310) being sleeved outside the valve core (321) and detachably connected to the valve body (322), a second sealing ring (410) being provided between the oxygen bullet (310) and the valve core (321), and a second sealing gasket (420) being provided between the oxygen bullet (310) and the valve body (322).

10. The oxygen bomb according to claim 6, characterized in that At least one pin (450) is provided on the outer wall of the cover body (200).

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