Portable dew point analysis device

Abstract

The utility model belongs to the technical field of dew condensation measurement, and discloses a portable dew point analysis device which comprises a case and a detection assembly arranged in the case, and further comprises a cleaning assembly used for cleaning a mirror surface, and the cleaning assembly comprises a support arranged on the outer side of the mirror surface; the sleeve is rotationally connected with the bracket; the reversing plate is arranged on the outer wall of the sleeve; one end of the scraping plate is fixedly arranged on the sleeve; the air pipe is arranged on the support and connected with a high-pressure hot air source, and the air outlet end of the air pipe inclines towards the reversing plate; the multiple reversing plates are arranged in the circumferential direction of the circle center of the sleeve at intervals. According to the scheme, high-pressure hot air impacts the reversing plate when being sprayed out from the air pipe and is converted into rotating power of the sleeve, so that the scraping plate moves circumferentially along the mirror surface to scrape and clean the mirror surface, and the hot air synchronously evaporates water stains in the scraping process; the utility model solves the problem of cleaning the mirror surface of the dew-point instrument.

Description

Technical Field

[0001] This solution belongs to the field of dew point measurement technology, specifically involving a portable dew point analysis device. Background Technology

[0002] Referring to the existing background technology with publication number CN112816523A, in the field of gas measurement, mirror contamination is a prominent problem in dew point measurements using cold mirror dew point meters. Its impact manifests in two main ways: the Raoult effect and alteration of the mirror's background scattering level. The Raoult effect is caused by water-soluble substances. If the gas being measured carries soluble salts, it will cause premature condensation on the mirror, resulting in a positive deviation in the measurement results. If the contamination consists of water-insoluble particles, such as dust, it will increase the background scattering level, causing zero-point drift in the photoelectric dew point meter. Furthermore, the vapors of easily condensable substances with boiling points lower than water (such as organic matter) can also interfere with dew point measurements. Generally, the impact of contamination in industrial process gas analysis is quite severe, but even in the measurement of pure gases, mirror contamination accumulates over time.

[0003] A detection and cleaning device and its application for the mirror of a cold mirror precision dew point meter are disclosed in existing publication (announcement) number CN105181747A. This device includes a light source, a photoelectric sensor, a cooler, a measuring chamber, and a camera. Water sprayers and dryers are symmetrically arranged on both sides of the mirror. A wiper inside the measuring chamber contacts the mirror and is used to remove water and dirt from the mirror. A dryer is installed on the other side of the mirror inside the measuring chamber to spray hot air to dry any water stains left after cleaning. A temperature sensor is connected to the bottom of the mirror, and the cooler is connected to the bottom of the temperature sensor.

[0004] The aforementioned device cleans the mirror surface. First, a small amount of water is sprayed onto the mirror surface via a water valve on an external water pipe. Then, a motor controlling the squeegee's movement is manually activated to remove the water. Next, the control valve of the external air duct connected to the dryer is opened, supplying hot air to the dryer, which then dries the mirror surface, resulting in repeated cleaning. However, while the squeegee removes most of the water, some moisture remains on the mirror surface, forming water stains due to differences in localized evaporation rates during the subsequent drying stage. Although multiple cleaning and drying cycles can be performed, this process is time-consuming. Utility Model Content

[0005] The purpose of this solution is to provide a portable dew point analyzer to address the issue of cleaning the dew point meter's mirror.

[0006] To achieve the above objectives, this solution provides a portable dew point analysis device, including a chassis and a detection component housed within the chassis, and further including a cleaning component for cleaning a mirror surface, the cleaning component comprising:

[0007] A bracket, which is located on the outer side of the mirror surface;

[0008] A sleeve, which is rotatably connected to a bracket;

[0009] A reversing plate, wherein the reversing plate is disposed on the outer wall of the sleeve;

[0010] A scraper, one end of which is fixedly mounted on a sleeve;

[0011] The air pipe is mounted on a support and is connected to a high-pressure hot air source. The air outlet of the air pipe is inclined toward the reversing plate.

[0012] The principle and effect of this solution are as follows: when high-pressure hot air is ejected from the air pipe, it impacts the reversing plate and is converted into the rotational power of the sleeve, causing the scraper to move along the circumference of the mirror surface to scrape and clean it; the hot air simultaneously evaporates water stains during the scraping process, avoiding positive measurement deviations caused by the Raoult effect. Compared with traditional step-by-step cleaning processes (such as the independent operation of water spraying-scraping-drying in CN112816523A), this solution integrates mechanical scraping and hot air drying into a single step, avoiding the problem of uneven evaporation of residual moisture from the scraper and the formation of water stains, thus shortening the cleaning time.

[0013] Furthermore, there are multiple commutator plates, and all multiple commutator plates are arranged at intervals along the circumferential direction of the sleeve's center.

[0014] The principle and effect of this scheme are as follows: when the high-pressure airflow impacts the reversing plate on the outer wall of the sleeve, multiple reversing plates arranged at intervals are subjected to the wind in turn. Compared with the intermittent drive of a single reversing plate being subjected to force at a single point, multiple reversing plates can withstand more airflow impacts, thereby increasing the sleeve speed.

[0015] Furthermore, the sleeve is provided with a number of ventilation holes, and the ventilation holes are all spaced apart around the center of the sleeve.

[0016] The principle and effect of this solution are as follows: when high-pressure hot air enters the interior of the sleeve through the ventilation holes spaced around the circumference of the sleeve, it forms a vortex thermal field as the sleeve rotates, causing the hot air to spread spirally on the mirror surface. Compared with the traditional static hot air blowing, the dynamically rotating hot air can eliminate the temperature gradient between the edge and center of the mirror surface, avoiding uneven drying and water stains caused by local overheating or overcooling.

[0017] Furthermore, the support includes a first support and a second support arranged symmetrically, both of which are semi-circular structures; the sleeve includes a first sleeve and a second sleeve arranged symmetrically, both of which are semi-circular structures, and the first sleeve and the second sleeve are slidably connected to the bottom of the first support and the second sleeve, respectively; there are two scrapers, and the two scrapers are respectively disposed on the first sleeve and the second sleeve; the support is connected to a drive unit for driving the support to move.

[0018] The principle and effect of this solution are as follows: When the drive unit pushes the first and second supports to move towards the center, their semi-circular structures close together to form a complete annular support. At the same time, the first and second sleeves close into an annular sleeve and begin to rotate, driving the two scrapers to scrape the contaminants synchronously along the circumference of the mirror. At this time, the ventilation holes of the sleeves rotate and uniformly cover the mirror surface with high-pressure hot air in the form of vortex. After cleaning, the drive unit reverses its action to separate the support and sleeve to both sides of the mirror surface, avoiding the obstruction of the optical detection path of the mirror surface by the traditional fixed annular support, and not affecting the normal detection work of the mirror surface.

[0019] Furthermore, the drive unit includes two cylinders, which are symmetrically arranged on both sides of the mirror. The cylinders are connected to a high-pressure hot air source through pipes. The air inlet end of the air pipe is slidably connected to the inner wall of the cylinder, and a spring is connected to the air inlet end. The free end of the spring is fixedly connected to the cylinder.

[0020] The principle and effect of this solution are as follows: When high-pressure hot gas is introduced into the cylinder through the pipe, the gas pushes the air inlet end of the air pipe to slide in the cylinder, stretching the spring and simultaneously driving the bracket and sleeve to move towards the center of the mirror surface, so that the split semi-circular sleeve closes into a complete ring structure. At this time, the scraper and hot air system are activated to complete the cleaning and drying of the mirror surface. After cleaning, the high-pressure air source is turned off, the spring releases the stored elastic potential energy, and pulls the air pipe and the connected bracket and sleeve back to their original positions to prevent the cleaning structure from blocking the mirror surface and affecting the normal measurement optical path.

[0021] Furthermore, the cylinder body is provided with a sliding groove, and the air intake end is slidably connected to the sliding groove.

[0022] The principle and effect of this solution are as follows: the slide groove is used to provide positioning and guidance for the intake end to slide within the cylinder.

[0023] Furthermore, the scraper is provided with a water storage pipe, the outlet end of the water storage pipe is a conical structure, and a sealing ball for sealing the outlet end is provided inside the outlet end. The sealing ball is connected to a compression spring, and the free end of the compression spring is fixedly connected to the water storage pipe.

[0024] The principle and effect of this solution are as follows: When the scraper is stationary, the elastic force of the compression spring presses the sealing ball tightly against the conical water outlet end, forming a seal to prevent the pre-stored deionized water in the water storage pipe from leaking; when the drive unit starts and the scraper rotates with the sleeve, the sealing ball moves outward under the action of centrifugal force, compressing the compression spring and forming an annular water passage gap with the conical water outlet end. At this time, the water in the water storage pipe seeps out evenly along the gap under the dual action of centrifugal force and gravity, spraying onto the mirror surface, and achieving wetting and scraping in conjunction with the rotational movement of the scraper; at the same time, the synchronously sprayed high-pressure hot air forms a high-temperature airflow band behind the scraper, which quickly evaporates the scraped sewage, avoiding the problem of water stains caused by improper water volume control or delayed evaporation in traditional water spray cleaning.

[0025] Furthermore, the water storage pipe is connected to a water inlet valve, and the water inlet valve is detachably connected to the water inlet pipe.

[0026] The principle and effect of this solution is to replenish the water storage pipe by setting up an inlet valve and an inlet pipe.

[0027] Furthermore, the total length of the two scrapers is not less than the width of the mirror surface.

[0028] The principle and effect of this solution is to ensure that the total length of the two scrapers covers the full width of the mirror, so that the scrapers sweep across all areas from the edge to the center of the mirror during rotation.

[0029] Furthermore, the contact surface between the scraper and the mirror surface is provided with a water spray hole, and the water outlet end of the water storage pipe is connected to the water spray hole.

[0030] The principle and effect of this solution is as follows: the water spray holes opened on the contact surface of the scraper are connected to the water storage pipe, so that the water flows to the scraper and directly contacts the mirror surface. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of a portable dew point analysis device according to the present invention;

[0032] Figure 2 Schematic diagram of the cleaning component of this utility model Figure 1 ;

[0033] Figure 3 This is a schematic diagram of the structure of the cleaning component of this utility model. Figure 2 ;

[0034] Figure 4 This is a schematic diagram of the internal structure of the cleaning component of this utility model;

[0035] Figure 5 This is a schematic diagram of the internal structure of the water storage pipe of this utility model.

[0036] The corresponding labels in the attached diagram are named as follows: chassis 1, detection component 2, mirror 21, cleaning component 3, bracket 31, first bracket 311, second bracket 312, sleeve 32, ventilation hole 321, first sleeve 322, second sleeve 323, reversing plate 33, scraper 34, air pipe 35, air outlet 351, air inlet 352, cylinder 36, spring 37, water storage pipe 38, water inlet valve 381, sealing ball 39, compression spring 391. Detailed Implementation

[0037] The following will describe the concept and technical effects of this utility model clearly and completely with reference to the embodiments, so as to fully understand the purpose, features and effects of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model.

[0038] Example:

[0039] Please see Figures 1-3 This embodiment provides a portable dew point analysis device, including a chassis 1, a detection component 2 disposed within the chassis, and a cleaning component 3. The detection component 2 is prior art; its specific structure can be found in patent document CN105181747A, and will not be described in detail here. The cleaning component 3 is used to clean the mirror surface 21 in the detection component 2. The cleaning component 3 is disposed on the outside of the mirror surface 21 and specifically includes the following structure:

[0040] The bracket 31 adopts a symmetrical split design, consisting of a first bracket 311 and a second bracket 312, both of which are semi-circular structures and are respectively installed on the left and right sides of the mirror 21. The bottom of the first bracket 311 is connected to the first sleeve 322 via a slide rail, and the bottom of the second bracket 312 is connected to the second sleeve 323. Both sleeves are semi-circular structures (e.g., ...). Figure 2 (As shown). When the drive unit pushes the first bracket 311 and the second bracket 312 to move towards the center of the mirror surface 21, the first sleeve 322 and the second sleeve 323 close to form a complete annular sleeve 32 (as shown). Figure 3As shown, several ventilation holes 321 are formed circumferentially on the inner wall of the sleeve 32 to allow hot air to diffuse evenly to the mirror surface 21. It should be noted that, in order to ensure that the first sleeve 322 and the second sleeve 323 return to their initial positions after cleaning (i.e., the first sleeve 322 slides on the first support 311 and the second sleeve 323 slides on the second support 312), matching magnets can be provided on the contact surfaces of the first support 311, the second support 312, and the first sleeve 322 and the second sleeve 323. For example, the bottom magnet of the first support 311 is the S pole, and the bottom magnet of the first sleeve 322 is the N pole; the bottom magnet of the second support 312 is the N pole, and the bottom magnet of the second sleeve 323 is the S pole, so that both return to their initial positions after rotation.

[0041] Ten reversing plates 33 are welded circumferentially to the outer wall of the sleeve 32, and the reversing plates 33 are all circumferentially spaced along the center of the sleeve 32. The reversing plates 33 form a 70° angle with the rotation axis of the sleeve 32. The bracket 31 is also equipped with an air pipe 35, which is connected to a high-pressure hot air source. The air outlet 351 of the air pipe 35 is inclined towards the reversing plate 33. When the high-pressure hot air is ejected from the air pipe 35, it impacts the reversing plate 33 and is converted into rotational power for the sleeve 32. The scraper 34 is fixed to the inner surface of the sleeve 32 by bolts and is horizontally arranged. The two scrapers 34 are respectively installed on the first sleeve 322 and the second sleeve 323. When closed, the total length covers the full width of the mirror surface 21. A water storage pipe 38 is pre-embedded inside the scraper 34. A water spray hole is provided on the contact surface between the scraper 34 and the mirror surface 21. The outlet end of the water storage pipe 38 is connected to the water spray hole. The water storage pipe 38 is connected to an inlet valve 381, which is detachably connected to an inlet pipe (not shown). Its outlet end is designed with a conical structure (e.g., ...). Figure 5 As shown), the sleeve 32 has a built-in sealing ball 39 and a compression spring 391. The sealing ball 39 is used to seal the water outlet end. One end of the sealing ball 39 is fixedly connected to the compression spring 391, and the free end of the compression spring 391 is fixedly connected to the water storage pipe 38. When the sleeve 32 rotates, the centrifugal force causes the sealing ball 39 to overcome the pressure of the compression spring 391 and form an annular water passage gap. The deionized water in the water storage pipe 38 evenly wets the mirror surface 21 through the spray hole.

[0042] The drive unit includes cylinders 36 symmetrically arranged on both sides of the mirror 21. Each cylinder 36 has a sliding groove (not shown) that is slidably connected to the air inlet 352 of the air pipe 35. The air inlet of the air pipe 35 can slide on the inner wall of the cylinder 36 (equivalent to a piston moving within the cylinder 36). The air pipe 35 is connected to a high-pressure hot air source. A spring 37 is connected to the air inlet 352 of the air pipe 35. The free end of the spring 37 is fixedly connected to the cylinder 36. When high-pressure hot air is input into the cylinder 36 through the pipe, it pushes the air inlet 352 to compress the spring 37, causing the bracket 31 and sleeve 32 to close. After cleaning, the spring 37 resets, causing the air pipe 35, bracket 31, and sleeve 32 to return to their original positions, preventing obstruction of the detection light path of the mirror 21.

[0043] During operation, the high-pressure hot air source is activated, and the airflow impacts the reversing plate 33 through the inclined outlet 351 of the air pipe 35, driving the sleeve 32 to rotate. Multiple reversing plates 33 continuously receive airflow, generating a stable torque that causes the scraper 34 to scrape along the circumference of the mirror surface 21. Simultaneously, hot air forms a rotating vortex through the ventilation holes 321 of the sleeve 32, evenly drying and scraping away wastewater from the mirror surface 21. Under centrifugal force, the sealing ball 39 of the water storage pipe 38 inside the scraper 34 opens, allowing deionized water to wet the mirror surface 21 and improve the cleaning effect. After cleaning is complete, the high-pressure hot air source is turned off, and the inlet 352 of the air pipe 35 resets under the preload of the spring 37, causing the air pipe 35 to retract into the cylinder 36. This also causes the bracket 31 and the sleeve 32 to move away from the mirror surface 21, ensuring that the detection optical path of the mirror surface 21 is not obstructed during normal operation.

[0044] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A portable dew point analysis device, comprising a chassis (1) and a detection component (2) disposed within the chassis (1), characterized in that, It also includes a cleaning component (3) for cleaning the mirror (21), the cleaning component (3) comprising: A bracket (31) is provided on the outside of the mirror (21); Sleeve (32), which is rotatably connected to bracket (31); A reversing plate (33) is disposed on the outer wall of the sleeve (32); Scraper (34), one end of which is fixed on sleeve (32); Air pipe (35), the air pipe (35) is mounted on the bracket (31), the air pipe (35) is connected to a high-pressure hot air source, and the air outlet (351) of the air pipe (35) is inclined toward the reversing plate (33).

2. The portable dew point analyzer according to claim 1, characterized in that: The number of the commutator plates (33) is multiple, and the multiple commutator plates (33) are all arranged at intervals along the circumferential direction of the center of the sleeve (32).

3. The portable dew point analyzer according to claim 1, characterized in that: The sleeve (32) has a number of ventilation holes (321), and the ventilation holes (321) are all spaced apart along the circumferential direction of the center of the sleeve (32).

4. The portable dew point analyzer according to claim 1, characterized in that: The bracket (31) includes a first bracket (311) and a second bracket (312) arranged symmetrically, both of which are semi-circular structures; the sleeve (32) includes a first sleeve (322) and a second sleeve (323) arranged symmetrically, both of which are semi-circular structures, and the first sleeve (322) and the second sleeve (323) are slidably connected to the bottom of the first bracket (311) and the second sleeve (323) respectively; the number of scrapers (34) is two, and the two scrapers (34) are respectively disposed on the first sleeve (322) and the second sleeve (323); the bracket (31) is connected to a drive unit for driving the bracket (31) to move.

5. A portable dew point analyzer according to claim 4, characterized in that: The drive unit includes a cylinder (36), there are two cylinders (36) and they are symmetrically arranged on both sides of the mirror (21). The cylinder (36) is connected to a high-pressure hot air source through a pipe. The air inlet (352) of the air pipe (35) is slidably connected to the inner wall of the cylinder (36). The air inlet (352) is connected to a spring (37). The free end of the spring (37) is fixedly connected to the cylinder (36).

6. A portable dew point analyzer according to claim 5, characterized in that: The cylinder body (36) is provided with a sliding groove, and the air intake end (352) is slidably connected to the sliding groove.

7. A portable dew point analyzer according to claim 5, characterized in that: The scraper (34) is provided with a water storage pipe (38). The water outlet of the water storage pipe (38) is a conical structure, and a sealing ball (39) for sealing the water outlet is provided inside the water outlet. The sealing ball (39) is connected to a compression spring (391), and the free end of the compression spring (391) is fixedly connected to the water storage pipe (38).

8. A portable dew point analyzer according to claim 7, characterized in that: The water storage pipe (38) is connected to a water inlet valve (381), and the water inlet valve (381) is detachably connected to the water inlet pipe.

9. A portable dew point analyzer according to claim 7, characterized in that: The total length of the two scrapers (34) is not less than the width of the mirror (21).

10. A portable dew point analyzer according to claim 7, characterized in that: The contact surface between the scraper (34) and the mirror (21) is provided with a water spray hole, and the water outlet of the water storage pipe (38) is connected to the water spray hole.

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