CN219072914U - Large-visual-field anti-fog observation window of overhead reaction kettle - Google Patents
Large-visual-field anti-fog observation window of overhead reaction kettle Download PDFInfo
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- CN219072914U CN219072914U CN202223239834.7U CN202223239834U CN219072914U CN 219072914 U CN219072914 U CN 219072914U CN 202223239834 U CN202223239834 U CN 202223239834U CN 219072914 U CN219072914 U CN 219072914U
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Abstract
The utility model relates to the technical field of chemical engineering experimental instruments, in particular to a large-view anti-fog observation window of an overhead reaction kettle, which comprises a plane mirror, wherein a plano-concave lens is arranged in the plane mirror, a conical lens is arranged in the plano-concave lens, the conical end of the conical lens faces outwards, a cavity is formed by surrounding the plane mirror, the plano-concave lens and the conical lens together, and an oil inlet and a first oil outlet are arranged on one side of the plane mirror away from the plano-concave lens at preset intervals. In the practical experimental application process, the large-view anti-fog observation window of the overhead reaction kettle can be used for timely disposing the observation window when the interior of the observation window is fogged or even water drops are generated so as not to influence observation; meanwhile, in the reaction process, the brightness can be increased through the conical lens, so that the observation is convenient, and the visual field can be widened through the plano-concave lens, so that the whole observation is realized; has the advantages of simple operation and low cost.
Description
Technical Field
The utility model relates to the technical field of chemical experimental instruments, in particular to a large-visual-field anti-fog observation window of an overhead reaction kettle.
Background
Compared with the traditional reaction equipment, the reaction kettle is a closed container capable of performing physical and chemical reactions at the temperature higher than the room temperature and the normal pressure, and can meet the conditions required by most chemical reactions due to the special structural design of the stainless steel shell and the high-temperature-resistant and corrosion-resistant inner container, so that the research and exploration of substances in the industry and the scientific community are greatly promoted, but the current observation window has the following problems:
1. the materials of the reaction kettle are generally carbon manganese steel, stainless steel, zirconium, nickel-based alloy and other composite materials, so that the reaction in the kettle cannot be seen clearly due to the material problem, and in the prior art, a plurality of reaction kettles are not provided with observation windows or are provided with the observation windows, but the materials in the reaction kettles are too deep, the light is darker, and the observation is influenced;
2. when the solvent in the reaction kettle reacts, the temperature in the reaction kettle is high, the temperature outside the reaction kettle is low, water mist can be generated in an observation window, and the observation is influenced;
3. the volatilization of small molecules in the reaction kettle can be condensed, so that the observation is influenced;
4. the existing observation window is basically made of planar glass, light enters the observation window at one point, the observation window is not suitable for observing the viscosity and vortex range of a stirring paddle, and the observation window is small in illumination range, narrow in visual field and lack of change.
Therefore, a large-view anti-fog observation window of the overhead reaction kettle is needed.
Disclosure of Invention
The utility model provides the large-view anti-fog observation window of the overhead reaction kettle for solving the problems in the background technology, so that the experimental state can be observed in the high-temperature and high-pressure process of the reaction kettle, and more analysis data is provided for the experimental process.
The technical scheme of the utility model is as follows:
a large-view anti-fog observation window of an overhead reaction kettle comprises a plane mirror;
the flat concave lens is arranged in the plane mirror, the conical lens is arranged in the flat concave lens, the conical end of the conical lens faces to the outside, the plane mirror, the flat concave lens and the conical lens enclose a cavity together, and an oil inlet and a first oil outlet are arranged on one side, away from the flat concave lens, of the plane mirror at preset intervals.
Preferably, a second oil outlet is further arranged between the oil inlet and the first oil outlet.
Preferably, the oil inlet is connected with the oil outlet of the heat exchanger through a pipeline.
Preferably, the oil entering the cavity through the oil inlet is glycerol.
Preferably, the surface of the cavity is a smooth surface.
Preferably, the diameter of the plane mirror is 40-60cm.
Preferably, the diameter of the plane mirror is 50cm.
Preferably, the thickness of the plane mirror is greater than the thickness of the plano-concave lens.
Preferably, the plano-concave lens has a length of 6-10cm.
Preferably, the plano-concave lens has a length of 8cm.
According to the technical scheme, based on the large-view anti-fog observation window of the overhead reaction kettle, the large-view anti-fog observation window of the overhead reaction kettle is used, so that the observation window can be timely disposed when the interior of the observation window is fogged or even water drops are generated, and observation is not influenced; meanwhile, in the reaction process, the brightness can be increased through the conical lens, so that the observation is convenient, and the visual field can be widened through the plano-concave lens, so that the whole observation is realized; has the advantages of simple operation and low cost.
Drawings
FIG. 1 is a front view of a large-field anti-fog viewing window of an overhead reaction kettle;
FIG. 2 is a side view of a large field of view anti-fog viewing window of an overhead reaction kettle;
FIG. 3 is a top view of a large field anti-fog viewing window of an overhead reaction kettle;
FIG. 4 is a graph showing the diameter of the corresponding light ring when the initial beam diameter is a predetermined value;
FIG. 5 is a graph showing the diameter of a corresponding light ring when the initial beam diameter is at another set value;
FIG. 6 is a schematic diagram of the calculation of the radius of curvature of a plano-concave lens;
FIG. 7 is a refractive schematic of a plano-concave lens;
fig. 8 is a schematic diagram of calculation of refraction angle of plano-concave lens.
Description of the reference numerals
A plane mirror 1; a plano-concave lens 2; a conical lens 3; a cavity 4; an oil inlet 5;
a first oil outlet 7; a second oil outlet 6.
Detailed Description
The following describes the detailed implementation of the embodiments of the present utility model with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the utility model, are not intended to limit the utility model.
In the description of the present application, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating relative importance or implicitly indicating the number of technical features indicated. Thus, unless otherwise indicated, features defining "first", "second" may include one or more such features either explicitly or implicitly; the meaning of "plurality" is two or more. The term "comprises," "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, a possible presence or addition of one or more other features, elements, components, and/or combinations thereof.
Furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.
The utility model provides a large-view anti-fog observation window of an overhead reaction kettle, which is shown in figures 1-3 and comprises a plane mirror 1;
the inside of plane mirror 1 is provided with plano-concave lens 2, plano-concave lens 2's inside is provided with conical lens 3, conical end of conical lens 3 is towards outside, plane mirror 1 plano-concave lens 2 with conical lens 3 encloses jointly and is equipped with cavity 4, plane mirror 1 is kept away from one side of plano-concave lens 2 is provided with oil inlet 5 and first oil-out 7 with predetermineeing the interval. In the preferred embodiment, the plane mirror 1, the plano-concave lens 2 and the conical lens 3 are coaxially arranged so as to facilitate better observation of the reaction condition in the reaction kettle.
According to the technical scheme, based on the large-view anti-fog observation window of the overhead reaction kettle, the large-view anti-fog observation window of the overhead reaction kettle is used, so that the observation window can be timely disposed when the interior of the observation window is fogged or even water drops are generated, and observation is not influenced; meanwhile, in the reaction process, the brightness can be increased through the conical lens, so that the observation is convenient, and the visual field can be widened through the plano-concave lens, so that the whole observation is realized; has the advantages of simple operation and low cost.
In the embodiment of the utility model, a second oil outlet 6 is further arranged between the oil inlet 5 and the first oil outlet 7, so that the glycerin in the cavity 4 can be rapidly discharged when the glycerin needs to be discharged. Preferably, in practical application, the number of the oil outlets can be set according to practical needs, so long as the observation effect of the large-field anti-fog observation window of the overhead reaction kettle is not affected.
In the embodiment of the utility model, the oil inlet 5 is connected with the oil outlet of the heat exchanger through a pipeline, so that in practical application, when water mist needs to be removed, heated glycerin can be quickly input into the cavity 4 through the heat exchanger, and further, the mist is quickly removed, and the observation effect is not influenced. In a preferred embodiment, the surface of the cavity 4 is a smooth surface, so that the glycerin is conveniently and rapidly discharged and is not easy to remain under the condition that the observation effect of the large-view anti-fog observation window of the overhead reaction kettle is not affected.
In the embodiment of the utility model, the diameter of the plane mirror 1 is 40-60cm. Preferably, the diameter of the plane mirror 1 is 50cm. Of course, in practical application, the diameter of the plane mirror 1 can be properly enlarged according to the size of the reaction kettle, so that the two can be matched, and the reaction condition in the whole reaction kettle can be observed. The difference is that the large-view anti-fog observation window of the overhead reaction kettle is arranged at the top of the reaction kettle in the utility model in a conventional plane mirror installation mode, so that the bottom of the whole reaction kettle can be observed through the plano-concave lens 2.
In the embodiment of the present utility model, the thickness of the plane mirror 1 is greater than the thickness of the plano-concave lens 2. Wherein, as shown in fig. 7, the thickness of the plano-concave lens 2 refers to the thickness of the middle portion.
In the embodiment of the utility model, the length of the plano-concave lens 2 is 6-10cm. Preferably, the plano-concave lens 2 has a length of 8cm. In the practical application process, the setting can be performed according to the size of the reaction kettle as well, so long as the bottom of the whole reaction kettle can be observed through the plano-concave lens 2.
In the present utility model, the implementation principle of the axicon 3 is: while a conventional condenser lens can focus light at a certain point on the optical axis, the present utility model employs the axicon lens 3 to focus light at a plurality of points on the optical axis. The beam of light produced by the cone lens 3 passes through the optical axis, and as the distance from the cone lens 3 to the material increases, the diameter of the formed light ring will also increase, while the thickness of the light ring remains unchanged. The beam has the characteristics of a Bessel beam, and the light intensity distribution along the beam propagation direction is not changed.
Specifically, as shown in FIGS. 4-5, the initial beam diameter d b The method comprises the steps of carrying out a first treatment on the surface of the The thickness t of the light ring is usually easily determined, corresponding to half the original beam diameter, which is proportional to the distance; with increasing distance L from the output end of the cone lens 3 to the image, diameter d of the light ring r Will increase and as the distance L from the output end of the cone lens 3 to the image decreases, the diameter of the light ring decreases. As shown in equation (1), the diameter of the light ring is related to twice the length and the tangent of the product of the refractive index (n) and the angle α.
d r ＝2Ltan[(n-1)α](1)
Specifically, taking a 5t reaction kettle with the diameter of 1.8m and the height of 1.8m as an example, the following steps are taken:
d r ＝2Ltan[(n-1)α]＝2×1.8×tan(0.492α)
d, taking d for illuminating the whole reaction kettle r =1.8m, then 0.492 a=26° 33', and α=53° 58' can be obtained.
And n D(50) ＝1.4785，α＝55°29′；n D(200) =1.411, α=64° 36'; then take α=64° 36'.
Therefore, in the practical application process, the material condition in the reaction kettle can be completely seen by changing the incident ray angle according to the condition.
In the utility model, the plano-concave lens 2 has thin middle and thick edge and is concave, and the implementation principle is as follows:
(1) Radius of curvature of plano-concave lens 2
Since the plano-concave lens 2 is the same as the plano-convex lens, the plano-convex lens with the same curvature is selected for calculation for the convenience of measurement. Specifically, the length d=8 cm, the thickness h=2 cm of the plane of the plano-convex lens was measured with a vernier caliper, and the average value was obtained by measuring 3 groups, thereby calculating the radius of curvature of the plano-convex lens.
Since the plano-convex lens is a part of a cylinder, the radius of the cylinder is r, the length of the plane of the plano-convex lens is d, and the thickness is h, as shown in fig. 6, the plano-convex lens is a thickened part of a black frame, and is obtained according to the pythagorean theorem:
(2) Measuring refractive index of plano-concave lens 2
The plano-concave lens 2 is placed on the dial to adjust the angle of the incident light, so that the light enters from the straight edge of the lens, the refraction light is observed, and the refraction light can be refracted again when exiting from the curved edge, so that the emergent light cannot be directly measured, the intersection point of the emergent light and the curved edge of the lens needs to be recorded during measurement, the incident point and the intersection point are connected, the incident point and the intersection point are prolonged, and the refraction angle is obtained by intersecting the edge of the dial. The schematic diagram is shown in fig. 7.
Specifically, n 1 sini 1 ＝n 2 sini 2 Since the plano-concave lens 2 is in air, n 2 ＝1，n＝n l ＝sini 2 /sini l The average n=1.492 is repeated three times.
Further, as shown in fig. 8, the incident light rays AB, CB which are close to the principal axis and parallel to the principal axis are normal, the incident angle α is small, and the refraction angle is approximately nα when the refractive index of the lens is n.
Of=fconcave, oc=r,
thus obtaining
Further, the reaction temperature in the reaction vessel is approximately 150 ℃, and the design temperature limit is 50-200 ℃. Generally 4.5X10 4 As a constant of temperature change. The value of this rough calculation may be slightly erroneous, but has a reference value. In other words, the refractive index decreases with increasing temperature, and the refractive index changes by about 0.00045 for every 1 degree of change in the temperature. We can calculate the refractive index corrected to 20 ℃ by the following equation 2:
n D(20) ＝1.492
n D(t) ＝n D(20) -0.00045(t-20℃)
when t=50 ℃, n D(50) ＝1.4785；f Concave recess ＝10.4493(cm)
When t=200 ℃, n D(200) ＝1.411；f Concave recess = 12.1655 (cm) (type 2 )
When the object is a virtual object, and the distance from the plano-concave lens 2 to the virtual object is twice the focal length, an inverted and equal-sized virtual image is formed, and the image and the object are on the opposite side (u=2f) of the lens;
when the object is a virtual object, and the distance from the plano-concave lens 2 to the virtual object is beyond twice the focal length, an inverted and reduced virtual image is formed, and the image and the object are on the opposite side (u > 2 f) of the lens;
in summary, the autoclave always presents a reduced image when viewed with a plano-concave lens.
The present utility model will be described in detail by way of examples, but the scope of the present utility model is not limited thereto.
Example 1
As shown in fig. 1-3, the implementation of the large-view anti-fog observation window of the overhead reaction kettle is implemented by using the large-view anti-fog observation window of the overhead reaction kettle, and specifically, the large-view anti-fog observation window of the overhead reaction kettle comprises a plane mirror 1;
the inside of plane mirror 1 is provided with plano-concave lens 2, plano-concave lens 2's inside is provided with conical lens 3, conical end of conical lens 3 is towards outside, plane mirror 1 plano-concave lens 2 with conical lens 3 encloses jointly and is equipped with cavity 4, plane mirror 1 is kept away from one side of plano-concave lens 2 is provided with oil inlet 5 and first oil-out 7 with predetermineeing the interval.
Specifically, a second oil outlet 6 is further arranged between the oil inlet 5 and the first oil outlet 7, the oil inlet 5 is connected with an oil outlet of the heat exchanger through a pipeline, oil entering the cavity 4 through the oil inlet 5 is glycerin, the surface of the cavity 4 is a smooth surface, the diameter of the plane mirror 1 is 50cm, and the length of the plano-concave lens 2 is 8cm.
In the practical application process, the large-view anti-fog observation window of the overhead reaction kettle is arranged at the top of the reaction kettle, and then the material condition in the reaction kettle can be completely seen by changing the incident ray angle (such as a flashlight).
Through detection, based on the large-view anti-fog observation window of the overhead reaction kettle, the anti-fog observation window can be timely disposed of when the interior of the observation window is fogged or even water drops are generated, so that observation is not influenced; meanwhile, in the reaction process, the brightness can be increased through the conical lens, so that the observation is convenient, and the visual field can be widened through the concave lens, so that the whole observation is realized; has the advantages of simple operation and low cost.
The large-view anti-fog observation window of the overhead reaction kettle provided by the utility model can timely treat the interior of the observation window when the observation window is fogged or even generates water drops so as not to influence observation; meanwhile, in the reaction process, the brightness can be increased through the conical lens, so that the observation is convenient, and the visual field can be widened through the concave lens, so that the whole observation is realized; has the advantages of simple operation and low cost.
The preferred embodiments of the present utility model have been described in detail above with reference to the accompanying drawings, but the present utility model is not limited thereto. Within the scope of the technical idea of the utility model, a plurality of simple variants can be made to the technical proposal of the utility model, and in order to avoid unnecessary repetition, the utility model does not need to be additionally described for various possible combinations. Such simple variations and combinations are likewise to be regarded as being within the scope of the present disclosure.
Claims (10)
1. The large-view anti-fog observation window of the overhead reaction kettle is characterized by comprising a plane mirror (1);
the novel flat-concave optical fiber lens is characterized in that a plano-concave lens (2) is arranged in the flat-concave optical fiber lens (1), a conical lens (3) is arranged in the plano-concave optical fiber lens (2), the conical end of the conical lens (3) faces to the outside, a cavity (4) is formed in the periphery of the flat-concave optical fiber lens (1) and the conical lens (3), and an oil inlet (5) and a first oil outlet (7) are formed in one side, away from the plano-concave optical fiber lens (2), of the flat-concave optical fiber lens (1) at preset intervals.
2. The large-field anti-fog observation window of the overhead reaction kettle according to claim 1, wherein a second oil outlet (6) is further arranged between the oil inlet (5) and the first oil outlet (7).
3. The large-view anti-fog observation window of the overhead reaction kettle according to claim 1 or 2, wherein the oil inlet (5) is connected with the oil outlet of the heat exchanger through a pipeline.
4. A large field of view antifog viewing window for an overhead reaction kettle according to claim 3, characterized in that the oil entering the cavity (4) through the oil inlet (5) is glycerol.
5. The large-field anti-fog observation window of the overhead reaction kettle according to claim 1, wherein the surface of the cavity (4) is a smooth surface.
6. The large-view anti-fog observation window of the overhead reaction kettle according to claim 5, wherein the diameter of the plane mirror (1) is 40-60cm.
7. The large-view anti-fog observation window of the overhead reaction kettle according to claim 6, wherein the diameter of the plane mirror (1) is 50cm.
8. The large-field anti-fog observation window of the overhead reaction kettle according to claim 1, wherein the thickness of the plane mirror (1) is larger than that of the plano-concave lens (2).
9. The large-field anti-fog observation window of the overhead reaction kettle according to claim 1, wherein the length of the plano-concave lens (2) is 6-10cm.
10. The large-field anti-fog observation window of the overhead reaction kettle according to claim 9, wherein the length of the plano-concave lens (2) is 8cm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202223239834.7U CN219072914U (en) | 2022-11-29 | 2022-11-29 | Large-visual-field anti-fog observation window of overhead reaction kettle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202223239834.7U CN219072914U (en) | 2022-11-29 | 2022-11-29 | Large-visual-field anti-fog observation window of overhead reaction kettle |
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