Smoke pollution prevention device for optical measurement

Abstract

The utility model discloses a smoke pollution prevention device for optical measurement, which belongs to the technical field of optical measurement, is mounted on a test pipeline and comprises an air inlet cylinder, a separator is arranged in the air inlet cylinder, dispersion air holes are arranged on the separator, the separator divides the inside of the air inlet cylinder into a first cavity and a second cavity which are communicated with each other, and the first cavity and the second cavity are communicated with each other. After gas enters the first cavity, the gas enters the second cavity through the separator, and the second cavity is communicated with the interior of the test pipeline; and the outer sleeve is arranged outside the gas inlet cylinder, a third cavity is formed in the outer sleeve, and gas enters the second cavity through the third cavity. According to the utility model, high-pressure gas is introduced into the test pipeline to clean smoke particles in the test pipeline, so that the smoke particles are prevented from damaging an optical lens in optical measurement, the experimental precision of optical measurement can be improved, and the cleaning mode is more convenient to operate and the maintenance cost is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of optical measurement technology, and in particular relates to a device for preventing smoke and dust pollution in optical measurement. Background Technology

[0002] In the fire experiment, the generated smoke is drawn into the smoke hood by the fan at the end of the smoke collection device, and then enters the smoke exhaust pipe. The measuring section is installed in the middle and rear part of the smoke exhaust pipe, which is equipped with an optical element for smoke density detection to realize smoke density detection and processing.

[0003] Because the smoke from a fire experiment contains a large amount of smoke particles, these particles easily adhere to the surface of the smoke density lens, affecting the experimental results of smoke density detection and damaging the optical lens, accelerating its aging process. Existing smoke density detection systems typically use manual cleaning to remove the smoke particles. However, since fire experiments are usually conducted at high altitudes, manual cleaning is difficult, inefficient, and poses safety hazards. Utility Model Content

[0004] This invention overcomes the shortcomings of the prior art and provides a smoke and dust pollution prevention device for optical measurement, thereby solving the problems existing in the prior art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a smoke and dust pollution prevention device for optical measurement, installed on a test pipeline, the smoke and dust pollution prevention device comprising...

[0006] An air inlet cylinder is provided with a partition inside the air inlet cylinder. The partition has a dispersing air hole. The partition divides the interior of the air inlet cylinder into a first cavity and a second cavity that are in communication. After the gas enters the first cavity, it passes through the partition and enters the second cavity. The second cavity is in communication with the interior of the test pipe.

[0007] An outer sleeve is disposed outside the air inlet cylinder, and a third cavity is provided inside the outer sleeve, through which gas enters the second cavity.

[0008] In a preferred embodiment of this utility model, the end of the air inlet cylinder is connected to the test pipe via a connecting sleeve.

[0009] In a preferred embodiment of this invention, the outer sleeve is connected to the test pipe via a positioning seat.

[0010] In a preferred embodiment of the present invention, the air inlet cylinder is provided with a first air inlet, the first air inlet being positioned corresponding to the first cavity, so as to introduce gas into the first cavity.

[0011] In a preferred embodiment of this utility model, a second air inlet is provided on the outer sleeve, and gas enters the third cavity through the second air inlet.

[0012] In a preferred embodiment of this utility model, the air inlet cylinder is provided with an air inlet hole to allow gas to enter the second cavity from the third cavity.

[0013] In a preferred embodiment of this invention, the dispersing pores are uniformly distributed on the separator to disperse the gas into the second cavity.

[0014] This utility model solves the defects existing in the background technology, and has the following beneficial effects:

[0015] This utility model's anti-smoke and dust pollution device introduces high-pressure gas into the test pipeline to clean the smoke and dust particles inside the test pipeline, preventing the smoke and dust particles from damaging the optical lenses during optical measurements. This protects the optical lenses, improves the experimental accuracy of optical measurements, and the cleaning method is relatively simple, easier to operate, and reduces maintenance costs. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0017] Figure 1 This is a schematic diagram of the preferred embodiment of the present invention in conjunction with the test pipeline;

[0018] Figure 2 This is a schematic diagram of the overall structure of a preferred embodiment of the present utility model;

[0019] Figure 3 for Figure 2 A sectional view;

[0020] Figure 4 This is a schematic diagram of the structure of the separator in a preferred embodiment of the present invention;

[0021] In the diagram: 100, test pipe; 200, transmitter; 300, receiver; 10, air inlet; 11, separator; 111, air dispersion port; 101, first cavity; 102, second cavity; 103, air inlet; 20, outer sleeve; 201, third cavity; 30, connecting sleeve; 40, positioning seat; 50, first air inlet; 60, second air inlet. Detailed Implementation

[0022] The following drawings will disclose several embodiments of this utility model. For clarity, many physical details will be described in the following description. However, it should be understood that these physical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these physical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0023] Furthermore, in this utility model, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the utility model. They are merely used to distinguish components or operations described with the same technical terms and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, such a combination should be considered non-existent and not within the scope of protection claimed by this utility model.

[0024] This embodiment provides a smoke and dust pollution prevention device for optical measurement, which is installed on a test pipe 100. One side of the test pipe 100 is a transmitter 200, and the other side is a receiver 300. The smoke and dust pollution prevention device is installed on the transmitter 200. After the smoke and dust pollution prevention device cleans the smoke and dust in the test pipe 100, the transmitter 200 emits light, which is received by the receiver 300 to complete the optical measurement. In this embodiment, the smoke and dust pollution prevention device introduces high-pressure gas into the test pipe 100 to clean the smoke and dust particles in the test pipe 100. This cleaning method is less difficult, more convenient to operate, and reduces maintenance costs.

[0025] Combination Figures 1 to 4 As shown, the smoke and dust pollution prevention device of this embodiment includes an air inlet cylinder 10 and an outer sleeve 20. There are two ways to introduce high-pressure gas: one is to directly introduce the gas into the air inlet cylinder 10 and then introduce the gas into the test pipe 100 through the air inlet cylinder 10; the other is to introduce the gas into the air inlet cylinder 10 through the outer sleeve 20 and then introduce the gas into the test pipe 100 through the air inlet cylinder 10 to clean the smoke and dust in the test pipe 100.

[0026] In this embodiment, the end of the air inlet cylinder 10 is connected to the test pipe 100 via a connecting sleeve 30, and the outer sleeve 20 is connected to the test pipe 100 via a positioning seat 40. With the cooperation of the connecting sleeve 30 and the positioning seat 40, the smoke and dust pollution prevention device is stably installed in the test pipe 100, and the air inlet cylinder 10 and the inside of the test pipe 100 are in a communication state, ensuring that the high-pressure gas introduced into the air inlet cylinder 10 can smoothly enter the test pipe 100 to clean the smoke and dust.

[0027] Combination Figure 3 and Figure 4 As shown, the air inlet cylinder 10 of this embodiment is provided with a separator 11, and the separator 11 is provided with a dispersion air hole 111. The separator 11 divides the interior of the air inlet cylinder 10 into a first cavity 101 and a second cavity 102 that are in communication. After the gas enters the first cavity 101, it enters the second cavity 102 through the separator 11. The second cavity 102 is in communication with the interior of the test pipe 100. The air inlet cylinder 10 is provided with a first air inlet 50, which is positioned corresponding to the first cavity 101 to guide the gas into the first cavity 101. In this way, the high-pressure gas is introduced into the first cavity 101 through the first air inlet 50, and the high-pressure gas is dispersed through the dispersion air hole 111, so that the high-pressure gas entering the second cavity 102 is more even. The high-pressure gas then enters the test pipe 100 to quickly clean the smoke and dust. The high-pressure gas treated by the dispersion air hole 111 can better clean the smoke and dust in the test pipe 100, improving the cleaning effect.

[0028] In this embodiment, the dispersing pores 111 are evenly distributed on the separator 11 to disperse the gas, so that the gas can better enter the second cavity 102 and more effectively treat the smoke and dust in the test pipe 100.

[0029] Combination Figure 2 and Figure 3 As shown, in this embodiment, the outer sleeve 20 is disposed outside the air inlet cylinder 10. The outer sleeve 20 has a third cavity 201 inside, through which gas enters the second cavity 102. The outer sleeve 20 is provided with a second air inlet 60, through which gas enters the third cavity 201. The air inlet cylinder 10 is provided with an air inlet hole 103 to allow gas to enter the second cavity 102 from the third cavity 201. High-pressure gas enters the third cavity 201 from the second air inlet 60. Since the air inlet cylinder 10 is provided with an air inlet hole 103, high-pressure gas can enter the second cavity 102 from the third cavity 201 and then enter the test pipe 100 to clean the dust in the test pipe 100.

[0030] In practical use, the smoke and dust pollution prevention device of this embodiment allows high-pressure gas to enter in two ways:

[0031] 1. High-pressure gas enters through the first air inlet 50 and enters the first cavity 101 through the first air inlet 50. The high-pressure gas is dispersed by the dispersion holes 111 of the separator 11, so that the high-pressure gas enters the second cavity 102 evenly and then enters the test pipeline 100 to clean the smoke and dust in the test pipeline 100.

[0032] 2. High-pressure gas enters through the second air inlet 60 and then enters the third cavity 201. The air inlet cylinder 10 is provided with an air inlet hole 103, so the high-pressure gas will enter the second cavity 102 from the third cavity 201 and then enter the test pipe 100 to clean the smoke and dust in the test pipe 100.

[0033] The two methods above can be used simultaneously or separately, depending on the cleaning requirements within the test pipeline 100.

[0034] In summary, the smoke and dust pollution prevention device of this embodiment introduces high-pressure gas into the test pipe 100 to clean the smoke and dust particles inside the test pipe 100, thereby preventing the smoke and dust particles from damaging the optical lens during optical measurement. This protects the optical lens, improves the experimental accuracy of optical measurement, and the cleaning method is relatively simple, easier to operate, and reduces maintenance costs.

[0035] While the present invention has been described above with reference to various embodiments, it should be understood that many changes and modifications can be made without departing from the scope of the present invention. That is, the methods, systems, or devices discussed above are merely examples. Various configurations can be appropriately omitted, substituted, or added to various processes or components. For example, in alternative configurations, methods can be performed in a different order than described, and / or various stages can be added, omitted, and / or combined. Moreover, features described with respect to certain configurations can be combined in various other configurations. Different aspects and elements of the configuration can be combined in a similar manner. Furthermore, as technology develops, many elements are merely examples and do not limit the scope of this disclosure or the claims.

[0036] Specific details are provided in the specification to offer a thorough understanding of exemplary configurations, including implementations. However, configurations can be practiced without these specific details; for example, well-known circuits, processes, algorithms, structures, and techniques have been shown without unnecessary detail to avoid obscuring the configuration. This description provides only exemplary configurations and does not limit the scope, applicability, or configuration of the claims. Rather, the foregoing description of the configurations will provide those skilled in the art with an enabling description for implementing the described techniques. Various changes can be made to the function and arrangement of the elements without departing from the spirit or scope of this disclosure.

[0037] Furthermore, although each operation can be described as a sequential process, many operations can be executed in parallel or simultaneously. Additionally, the order of operations can be rearranged. A process may have additional steps. Moreover, examples of methods can be implemented using hardware, software, firmware, middleware, code, hardware description languages, or any combination thereof. When implemented in software, firmware, middleware, or code, the program code or code segments used to perform the necessary tasks can be stored in a non-transitory computer-readable medium such as a storage medium and executed by a processor.

[0038] In summary, the above detailed description is intended to be exemplary rather than limiting, and it should be understood that the claims (including all equivalents) are intended to define the spirit and scope of this invention. These embodiments should be understood as illustrative only and not as limiting the scope of protection of this invention. After reading the description of this invention, those skilled in the art can make various alterations or modifications to it, and these equivalent changes and modifications also fall within the scope defined by the claims of this invention.

Claims

1. A dust and smoke prevention device for optical measurements, installed on a test pipe (100), characterized in that, The smoke and dust pollution prevention device includes An air inlet cylinder (10) is provided with a partition (11) inside the air inlet cylinder (10). The partition (11) is provided with a dispersion air hole (111). The partition (11) divides the interior of the air inlet cylinder (10) into a first cavity (101) and a second cavity (102) that are in communication. After the gas enters the first cavity (101), it enters the second cavity (102) through the partition (11). The second cavity (102) is in communication with the interior of the test pipe (100). An outer sleeve (20) is provided outside the air inlet cylinder (10). The outer sleeve (20) has a third cavity (201) inside, through which gas enters the second cavity (102).

2. The anti-smoke and dust pollution device for optical measurement according to claim 1, characterized in that, The end of the air inlet cylinder (10) is connected to the test pipe (100) via a connecting sleeve (30).

3. The anti-smoke and dust pollution device for optical measurement according to claim 1, characterized in that, The outer sleeve (20) is connected to the test pipe (100) via a positioning seat (40).

4. The anti-smoke and dust pollution device for optical measurement according to claim 1, characterized in that, The air inlet cylinder (10) is provided with a first air inlet (50), which corresponds to the position of the first cavity (101) so as to introduce gas into the first cavity (101).

5. The anti-smoke and dust pollution device for optical measurement according to claim 1, characterized in that, The outer sleeve (20) is provided with a second air inlet (60), through which gas enters the third cavity (201).

6. The anti-smoke and dust pollution device for optical measurement according to claim 5, characterized in that, The air inlet cylinder (10) is provided with an air inlet hole (103) to allow gas to enter the second cavity (102) from the third cavity (201).

7. The anti-smoke and dust pollution device for optical measurement according to claim 1, characterized in that, The dispersion pores (111) are evenly distributed on the separator (11) to disperse the gas into the second cavity (102).

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