Oxygen bomb and calorimeter

Abstract

The utility model discloses an oxygen bomb which comprises an oxygen bomb body, an oxygen bomb head and an oxygen bomb cover, one end of the oxygen bomb body is open, the oxygen bomb head is arranged at the open end of the oxygen bomb body, the oxygen bomb cover is arranged outside the oxygen bomb head in a sleeved mode and detachably connected with the oxygen bomb body, and the oxygen bomb further comprises a protective sleeve, an integrated laser diode and a light-transmitting piece. The integrated laser diode is installed in the protective sleeve, and the light-transmitting sheet is installed at the lower end of the protective sleeve. The laser focusing device has the advantages of simplified structure, simplicity and convenience in installation and debugging, good laser focusing effect and the like.

Description

Technical Field

[0001] The utility model mainly relates to the technical field of sample heat determination, in particular to an oxygen bomb and a calorimeter. Background Art

[0002] In the coal-fired industry, it is generally necessary to sample and prepare coal for analysis, among which the calorific value of coal is a key indicator that determines the quality of coal. The calorimeter is an instrument specifically used to measure the calorific value of coal. Its working principle is to put a certain amount of coal sample into an oxygen bomb with sufficient oxygen to burn it. The heat generated is transferred to the water in the inner barrel through the oxygen bomb. After the stirrer on the upper cover of the calorimeter stirs it evenly, the inner barrel temperature probe can accurately measure the change in water temperature and thus measure the energy released by a certain amount of coal sample in the oxygen bomb. The calorimeter is currently widely used.

[0003] The oxygen bomb is the core component of the calorimeter, which directly affects the accuracy of the calorific value measurement. At present, the main ignition methods of the oxygen bomb are ignition wire ignition, cotton thread ignition, heating rod ignition and laser ignition; among them, laser ignition is the latest ignition method, which has the advantages of fast ignition speed, low ignition heat, no need for ignition material and simple operation.

[0004] The laser ignition oxygen bomb in the prior art includes a fixing seat, a laser emitter and a focusing lens. After installation, focusing needs to be performed to ensure that the focus is on the sample. The distance requirement between the laser diode and the focusing lens is very strict, the focusing workload is large, and foreign matter may be brought into the focusing lens during focusing, resulting in poor focusing effect. After focusing, the focusing lens needs to be fixed to prevent the focusing lens from loosening and causing focal length changes. The entire focusing process is very complicated and time-consuming. In addition, the installation of the focusing lens and the laser emitter has a large overall length, and the laser module is heavy in size and weight, resulting in a decrease in the precision of the calorimeter test results. The laser generator and the focusing lens in the existing laser ignition oxygen bomb are installed in two different fixing seats, and the coaxiality and spacing of the focusing lens and the laser diode are not easy to ensure, and it is not easy to assemble and replace. Utility Model Content

[0005] In view of the technical problems existing in the prior art, the utility model provides an oxygen bomb and a calorimeter which have a simplified structure, are simple and convenient to install and debug, and have a good laser focusing effect.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] An oxygen bomb comprises an oxygen bomb body, an oxygen bomb head and an oxygen bomb cover, wherein one end of the oxygen bomb body is open, the oxygen bomb head is arranged at the open end of the oxygen bomb body, the oxygen bomb cover is sleeved outside the oxygen bomb head and is detachably connected to the oxygen bomb body, and further comprises a protective cover, an integrated laser diode and a light-transmitting sheet, the integrated laser diode is installed in the protective cover, and the light-transmitting sheet is installed at the lower end of the protective cover.

[0008] As a further improvement of the utility model: the integrated laser diode includes a laser generator and a lens, and the laser generator and the lens are of an integrated design.

[0009] As a further improvement of the utility model: the protective sleeve comprises a sealing seat and a mounting seat, the sealing seat is sealed and connected to the oxygen warhead via a first sealing member, and the integrated laser diode is arranged in the mounting seat.

[0010] As a further improvement of the present invention: the height of the mounting seat is 8 mm to 25 mm.

[0011] As a further improvement of the utility model: a second sealing member is provided between the light-transmitting sheet and the protective cover.

[0012] As a further improvement of the utility model: it also includes an oxygen filling nozzle, an intake and exhaust channel, a valve core and a third sealing member, the valve core is arranged in the intake and exhaust channel, and the valve core is sealed and connected to the intake and exhaust channel through the third sealing member.

[0013] As a further improvement of the utility model: it also includes a nozzle assembly, the air inlet of the nozzle assembly is communicated with the air inlet and exhaust channel, and the air outlet of the nozzle assembly faces the surface of the light-transmitting sheet.

[0014] As a further improvement of the utility model: the air outlet of the nozzle assembly is inclined upward.

[0015] The present invention also provides a calorimeter, comprising a box body, wherein the oxygen bomb as described above is arranged in the box body.

[0016] Compared with the prior art, the advantages of the utility model are:

[0017] 1. The oxygen bomb of the utility model adopts an integrated laser emitter to replace the laser emitter and the focusing lens, and the structure is simpler. The integrated laser diode has a lens inside and has a focusing function, so there is no need to focus during installation, which greatly reduces the difficulty of debugging, and there is no need to additionally fix the focusing lens. During the test, there will be no problem of focal length change caused by loosening of the focusing lens, and the focusing effect is good; and the overall size of the integrated laser emitter is smaller, which can avoid the influence of light path attenuation caused by the excessive length of the protective cover on the test result; and the weight of the integrated laser diode is lighter than that of a separate laser generator and a focusing lens, which can prevent heat accumulation and improve the accuracy of calorific value analysis.

[0018] 2. The calorimeter of the utility model uses the oxygen bomb as described above, which effectively ensures the high precision of sample experiments, greatly reduces the workload of installation and debugging, and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural diagram of the utility model.

[0020] Figure 2 This is a structural diagram of the protective cover of the utility model.

[0021] Legend:

[0022] 1. Oxygen bomb body; 2. Oxygen bomb head; 3. Oxygen bomb cover; 4. Protective cover; 41. Sealing seat; 42. Mounting seat; 5. Integrated laser diode; 6. Transparent sheet; 7. First sealing member; 8. Second sealing member; 9. Oxygen filling nozzle; 10. Inlet and exhaust passage; 11. Valve core; 12. Third sealing member; 13. Nozzle assembly; 131. Air inlet; 132. Air outlet. DETAILED DESCRIPTION

[0023] The present invention is further described below in conjunction with the accompanying drawings and specific preferred embodiments, but the protection scope of the present invention is not limited thereby.

[0024] In the description of the present invention, it should be understood that the terms "side", "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or suggesting 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 one or more of the features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0026] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0027] like Figure 1 to Figure 2 As shown, this embodiment discloses an oxygen bomb, including an oxygen bomb body 1, an oxygen bomb head 2 and an oxygen bomb cover 3. One end of the oxygen bomb body 1 is open, and the oxygen bomb head 2 is arranged at the open end of the oxygen bomb body 1. The oxygen bomb cover 3 is sleeved outside the oxygen bomb head 2 and is detachably connected to the oxygen bomb body 1. It also includes a protective cover 4, an integrated laser diode 5 and a light-transmitting sheet 6. The integrated laser diode 5 is installed in the protective cover 4, and the light-transmitting sheet 6 is installed at the lower end of the protective cover 4.

[0028] The oxygen bomb in this embodiment uses an integrated laser diode 5 to replace the laser emitter and the focusing lens, and has a simpler structure. The integrated laser diode 5 has a lens inside and has a focusing function, so there is no need to focus during installation, which greatly reduces the difficulty of debugging, and there is no need to additionally fix the focusing lens. During the test, there will be no problem of focal length change caused by loosening of the focusing lens, and the focusing effect is good; and the overall size of the integrated laser diode 5 is smaller, which can avoid the influence of light path attenuation caused by the excessive length of the protective cover 4 on the test results; and the weight of the integrated laser diode 5 is lighter than the overall weight of a separate laser generator and a focusing lens, which can prevent heat accumulation and improve the calorimetric analysis accuracy of the calorimeter.

[0029] In this embodiment, the integrated laser diode 5 includes a laser generator and a lens, and the laser generator and the lens are designed as an integrated unit. Compared with a separate laser generator and lens, the integrated laser diode 5 is lighter and smaller in size, and can effectively prevent heat accumulation and improve the calorimetric analysis accuracy of the calorimeter.

[0030] In this embodiment, the protective cover 4 includes a sealing seat 41 and a mounting seat 42. The sealing seat 41 is sealed and connected to the oxygen warhead 2 through a first sealing member 7, and the integrated laser diode 5 is arranged in the mounting seat 42. The first sealing member 7 can effectively prevent the integrated laser diode 5 from being affected by high pressure and high temperature, and can effectively extend the service life of the integrated laser diode 5.

[0031] In this embodiment, the height of the mounting seat 42 is 8 mm to 25 mm. Compared with the split type mounting seat in the prior art that separately mounts the laser generator and the focusing lens, the height of the mounting seat 42 in this embodiment is shorter to reduce the impact on the optical path transmission.

[0032] In this embodiment, a second sealing member 8 is provided between the light-transmitting sheet 6 and the protective cover 4. The sealing member can play a good sealing role, and the dust and various corrosive gases in the gas after combustion will not enter the mounting seat 42, thereby preventing the dust and various corrosive gases from polluting or corroding the integrated laser diode 5, reducing the impact on light transmission, and improving the success rate of ignition.

[0033] In this embodiment, an oxygen filling nozzle 9, an inlet and outlet passage 10, a valve core 11 and a third sealing member 12 are also included. The valve core 11 is disposed in the inlet and outlet passage 10, and the valve core 11 is sealed and connected to the inlet and outlet passage 10 through the third sealing member 12; a nozzle assembly 13 is also included, an inlet 131 of the nozzle assembly 13 is communicated with the inlet and outlet passage 10, and an outlet 132 of the nozzle assembly 13 faces the surface of the light-transmitting sheet 6. Further, in a preferred embodiment, the outlet 132 of the nozzle assembly 13 is inclined upward.

[0034] By designing the nozzle assembly 13 connected to the inlet and exhaust channel 10, when the oxygen bomb has been used for a period of time, more dust and water mist will inevitably adhere to the surface of the light-transmitting sheet 6, and the dust and water mist will weaken the laser intensity, causing ignition failure. Since the air inlet 131 of the nozzle assembly 13 is connected to the inlet and exhaust channel 10, and the air outlet 132 is aligned with the surface of the light-transmitting sheet 6, each time oxygen is charged, high-pressure oxygen can be used to first clean the dust and water mist adhered to the light-transmitting sheet 6, ensuring that the light-transmitting sheet 6 has good light transmittance, improving the success rate of ignition, and thus effectively improving work efficiency.

[0035] In this embodiment, a calorimeter is also provided, comprising a box body, in which the oxygen bomb as described above is arranged. Since the calorimeter adopts the oxygen bomb in the above embodiment, the calorimeter also has the same beneficial effects.

[0036] Working principle: During operation, a certain amount of sample is placed in the crucible, and then the crucible is placed in the oxygen bomb body 1 and covered with the oxygen bomb cover 3 to seal it. Then, oxygen is filled into the oxygen bomb body 1, and the external high-pressure oxygen nozzle is aligned with the valve core 11 of the oxygen bomb. The valve core 11 moves downward under the action of high-pressure oxygen and leaves the sealed state. High-pressure oxygen enters through the gap between the inlet and outlet passage 10 and the valve core 11. As the amount of oxygen filled increases, the pressure in the oxygen bomb pushes the valve core 11 upward, so that the valve core 11 seals the inlet and outlet passage 10, completing the oxygen filling process. Then, the oxygen bomb body 1 is placed in the calorimeter, and a certain amount of water is filled into the inner barrel of the calorimeter. After the temperature of the water in the inner barrel stabilizes, the integrated laser diode 5 emits light, which passes through the light-transmitting sheet 6 and the fire baffle in turn and shines on the sample in the crucible, igniting the sample for calorific value analysis experiments.

[0037] The above are only preferred implementations of the utility model. The protection scope of the utility model is not limited to the above embodiments. All technical solutions under the idea of ​​the utility model belong to the protection scope of the utility model. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the utility model should be regarded as the protection scope of the utility model.

Claims

1. An oxygen bomb, comprising an oxygen bomb body (1), an oxygen bomb head (2) and an oxygen bomb cover (3), wherein one end of the oxygen bomb body (1) is open, the oxygen bomb head (2) is arranged at the open end of the oxygen bomb body (1), and the oxygen bomb cover (3) is sleeved outside the oxygen bomb head (2) and is detachably connected to the oxygen bomb body (1), characterized in that: It also comprises a protective cover (4), an integrated laser diode (5) and a light-transmitting sheet (6), wherein the integrated laser diode (5) is installed in the protective cover (4), and the light-transmitting sheet (6) is installed at the lower end of the protective cover (4).

2. The oxygen bomb according to claim 1, characterized in that The integrated laser diode (5) comprises a laser generator and a lens, and the laser generator and the lens are of an integrated design.

3. The oxygen bomb according to claim 1, characterized in that The protective sleeve (4) comprises a sealing seat (41) and a mounting seat (42); the sealing seat (41) is sealed and connected to the oxygen warhead (2) via a first sealing member (7); and the integrated laser diode (5) is arranged in the mounting seat (42).

4. The oxygen bomb according to claim 3, characterized in that The height of the mounting seat (42) is 8 mm to 25 mm.

5. The oxygen bomb according to claim 1, characterized in that A second sealing member (8) is provided between the light-transmitting sheet (6) and the protective cover (4).

6. The oxygen bomb according to claim 1, characterized in that It also comprises an oxygen filling nozzle (9), an air inlet and exhaust channel (10), a valve core (11) and a third sealing member (12); the valve core (11) is arranged in the air inlet and exhaust channel (10); the valve core (11) is sealedly connected to the air inlet and exhaust channel (10) via the third sealing member (12).

7. The oxygen bomb according to claim 6, characterized in that It also comprises a nozzle assembly (13), wherein an air inlet (131) of the nozzle assembly (13) is in communication with an air inlet and outlet channel (10), and an air outlet (132) of the nozzle assembly (13) faces the surface of the light-transmitting sheet (6).

8. The oxygen bomb according to claim 7, characterized in that The air outlet (132) of the nozzle assembly (13) is inclined upward.

9. A calorimeter, characterized in that The invention comprises a box body, wherein the oxygen bomb according to any one of claims 1 to 8 is arranged in the box body.

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