A device for measuring the water level inside a steam drum

Abstract

The utility model discloses a kind of steam pocket internal water level measuring devices, it is related to steam pocket water level measuring technical field, including hollow measuring column, the right side of the hollow measuring column is provided with strip-shaped through slot, transparent strip is fixedly installed on the inner wall of the strip-shaped through slot, the right side of the hollow measuring column is coated with scale line, self-cleaning measuring mechanism is arranged on the hollow measuring column, flushing mechanism is arranged on the hollow measuring column;The self-cleaning measuring mechanism includes electric telescopic rod.The utility model is through the design of self-cleaning measuring mechanism whole, when needing to clean the inner side wall of transparent strip, control electric telescopic rod repeatedly telescopic work, by the transmission of connecting arm and slide axle, can drive lifting block whole to lift, and then promote scraping member to scrape on the inner side wall of transparent strip, realize the function of automatically cleaning, reduce the consumption of manpower, improve the convenience of cleaning work.

Description

Technical Field

[0001] This utility model relates to the field of steam drum water level measurement technology, specifically to a steam drum internal water level measurement device. Background Technology

[0002] The steam drum (also known as the boiler drum) is the core cylindrical pressure vessel in the boiler system. It mainly connects the downcomer and the water-cooled wall to form a natural water circulation system. It undertakes the functions of steam-water separation and steam purification to ensure steam quality. At the same time, it stores boiler water to buffer pressure fluctuations when operating conditions change, and delivers saturated steam to the superheater. It serves as the connecting hub for the three processes of boiler heating, evaporation and superheating.

[0003] Steam drum water level measurement is a critical aspect of boiler safe operation, thus requiring redundant measurement methods such as bicolor water level gauges and differential pressure transmitters. Traditional transparent measuring devices lack automatic cleaning capabilities, and after a period of use, the inner wall becomes blurred due to the adhesion of boiler impurities, affecting the measurement and observation results. In such cases, manual disassembly and cleaning are still necessary, which is inefficient. Utility Model Content

[0004] The purpose of this invention is to provide a water level measuring device inside a steam drum to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A steam drum internal water level measuring device includes a hollow measuring column, a strip-shaped through groove on the right side of the hollow measuring column, a transparent strip plate fixedly installed on the inner wall of the strip-shaped through groove, scale lines painted on the right side of the hollow measuring column, a self-cleaning measuring mechanism and a flushing mechanism provided on the hollow measuring column.

[0007] The self-cleaning measuring mechanism includes an electric telescopic rod, which is fixedly installed on the back of the hollow measuring column. A connecting arm is fixedly installed at the telescopic end of the electric telescopic rod, and a sliding shaft is fixedly installed at the end of the connecting arm away from the electric telescopic rod. The sliding shaft is slidably connected to the inner wall of the hollow measuring column near the top. A lifting block located at the bottom of the inner cavity of the hollow measuring column is fixedly installed at the bottom of the sliding shaft. A sliding rod is slidably connected to the inner wall of the lifting block, and a scraper is fixedly installed at the end of the sliding rod. An elastic alloy component is fixedly installed on the side of the lifting block, and the outer wall of the elastic alloy component movably abuts against the side of the scraper.

[0008] Preferably, the self-cleaning measuring mechanism further includes a first connecting electric valve and a second connecting electric valve. The first connecting electric valve is fixedly connected to the left side of the hollow measuring column, and the end of the first connecting electric valve away from the hollow measuring column is fixedly connected to a first connecting pipe.

[0009] Preferably, the second connecting electric valve is fixedly connected to the left side of the hollow measuring column, and the left side of the second connecting electric valve is fixedly connected to the second connecting pipe.

[0010] Preferably, the flushing mechanism includes a receiving pipe, the bottom of which is fixedly connected to a branch pipe, the number of which is set to three, all of which are fixedly connected to the top of the hollow measuring column, and an inlet electric valve is fixedly connected to the side of the receiving pipe.

[0011] Preferably, the end of the electric inlet valve away from the receiving pipe is fixedly connected to an inlet pipe, a limit ring is fixedly installed on the inner wall of the inlet pipe, a plug-in kit is movably inserted into the side of the limit ring, and a ceramic filter element is fixedly connected to the side of the plug-in kit.

[0012] Preferably, the flushing mechanism further includes a drain electric valve, which is fixedly connected to the bottom of the hollow measuring column.

[0013] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0014] Through the overall design of the self-cleaning measuring mechanism, when the inner wall of the transparent strip needs to be cleaned, the electric telescopic rod is controlled to repeatedly extend and retract. The transmission of the connecting arm and the sliding shaft can drive the lifting block to rise and fall as a whole, thereby causing the scraper to scrape on the inner wall of the transparent strip, realizing the function of automatic cleaning, reducing the consumption of manpower, and improving the convenience of cleaning work. The sliding rod is used to limit the left and right movement of the scraper. Through the elasticity of the elastic alloy part, a pushing force can be applied to the right of the scraper, causing the scraper to fit more tightly against the transparent strip, thereby improving the cleaning effect. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a cross-sectional structural diagram of the hollow measuring column of this utility model;

[0017] Figure 3 This is a schematic diagram of the lifting block of this utility model;

[0018] Figure 4 This is a cross-sectional structural diagram of the water inlet pipe of this utility model.

[0019] In the diagram: 1. Hollow measuring column; 11. Transparent strip; 12. Scale line; 2. Self-cleaning measuring mechanism; 21. No. 1 connecting electric valve; 22. No. 1 connecting pipe; 23. No. 2 connecting electric valve; 24. No. 2 connecting pipe; 25. Electric telescopic rod; 26. Connecting arm; 27. Sliding shaft; 28. Lifting block; 281. Sliding rod; 282. Scraper; 283. Elastic alloy part; 3. Flushing mechanism; 31. Receiving pipe; 311. Branch pipe; 312. Water inlet electric valve; 313. Water inlet pipe; 314. Limiting ring; 315. Insertion kit; 316. Ceramic filter element; 32. Sewage discharge electric valve. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to embodiments:

[0021] like Figures 1-4 As shown, this utility model provides a steam drum internal water level measuring device, including a hollow measuring column 1, a strip-shaped through groove on the right side of the hollow measuring column 1, a transparent strip plate 11 fixedly installed on the inner wall of the strip-shaped through groove, a scale line 12 painted on the right side of the hollow measuring column 1, a self-cleaning measuring mechanism 2 and a flushing mechanism 3 on the hollow measuring column 1.

[0022] The self-cleaning measuring mechanism 2 includes an electric telescopic rod 25, which is fixedly installed on the back of the hollow measuring column 1. A connecting arm 26 is fixedly installed at the telescopic end of the electric telescopic rod 25. A sliding shaft 27 is fixedly installed at the end of the connecting arm 26 away from the electric telescopic rod 25. The sliding shaft 27 is slidably connected to the inner wall of the hollow measuring column 1 near the top. A lifting block 28 located at the bottom of the inner cavity of the hollow measuring column 1 is fixedly installed at the bottom of the sliding shaft 27. A sliding rod 281 is slidably connected to the inner wall of the lifting block 28. A scraper 282 is fixedly installed at the end of the sliding rod 281. An elastic alloy part 283 is fixedly installed on the side of the lifting block 28. The outer wall of the elastic alloy part 283 movably abuts against the side of the scraper 282. If it is necessary to clean the transparent strip... The inner wall of the plate 11 is cleaned by controlling the electric telescopic rod 25 to repeatedly extend and retract. Driven by the connecting arm 26 and the sliding shaft 27, the lifting block 28 can be raised and lowered as a whole, thereby causing the scraper 282 to scrape on the inner wall of the transparent plate 11, realizing the function of automatic cleaning. The sliding rod 281 is used to limit the left and right movement of the scraper 282. Through the elasticity of the elastic alloy part 283, a pushing force can be applied to the right of the scraper 282, causing the scraper 282 to fit more tightly on the transparent plate 11, thereby improving the cleaning effect. The design of the transparent plate 11 makes it easy for users to observe the water vapor boundary line inside the hollow measuring column 1, and then read the water level value by referring to the scale line 12.

[0023] Furthermore, such as Figure 1As shown, the self-cleaning measuring mechanism 2 also includes a first connecting electric valve 21 and a second connecting electric valve 23. The first connecting electric valve 21 is fixedly connected to the left side of the hollow measuring column 1, and the end of the first connecting electric valve 21 away from the hollow measuring column 1 is fixedly connected to a first connecting pipe 22. The second connecting electric valve 23 is fixedly connected to the left side of the hollow measuring column 1, and the left side of the second connecting electric valve 23 is fixedly connected to a second connecting pipe 24. The ends of the first connecting pipe 22 and the second connecting pipe 24 are pre-installed on the steam drum. The first connecting electric valve 21 and the second connecting electric valve 23 are opened. At this time, the inner cavity of the steam drum is in communication with the inner cavity of the hollow measuring column 1. The medium inside the steam drum will enter the interior of the hollow measuring column 1. The user can observe the water vapor boundary line inside the hollow measuring column 1 through the transparent strip 11, and then read the water level value by referring to the scale line 12. When performing automatic cleaning, the first connecting electric valve 21 and the second connecting electric valve 23 are closed.

[0024] Furthermore, such as Figure 4 As shown, the rinsing mechanism 3 includes a receiving pipe 31, with branch pipes 311 fixedly connected to the bottom of the receiving pipe 31. Three branch pipes 311 are fixedly connected to the top of the hollow measuring column 1. A water inlet electric valve 312 is fixedly connected to the side of the receiving pipe 31. A water inlet pipe 313 is fixedly connected to the end of the water inlet electric valve 312 away from the receiving pipe 31. A limit ring 314 is fixedly installed on the inner wall of the water inlet pipe 313. A connector 315 is movably inserted into the side of the limit ring 314. A ceramic filter element 316 is fixedly connected to the side of the connector 315. An external clean water source pipe is pre-connected to the water inlet pipe 313. If it is necessary to clean the inner side of the transparent strip 11... The wall is flushed by opening the inlet electric valve 312, allowing clean water to pass through the inlet pipe 313, the inlet electric valve 312, and the receiving pipe 31 into the inner cavity of the branch pipe 311. The water is then sprayed onto the right side of the inner cavity of the hollow measuring column 1, thus flushing the inner wall of the transparent strip 11. The cleaning effect is enhanced by the operation of the scraper 282. The ceramic filter element 316 filters the clean water, intercepting any impurities that may be present in the water, ensuring the smooth flow of the pipeline. To clean the ceramic filter element 316, disconnect the external clean water source pipe at the inlet pipe 313, and then pull the plug-in kit 315 along with the ceramic filter element 316 out of the inner cavity of the inlet pipe 313.

[0025] Furthermore, such as Figure 2 As shown, the flushing mechanism 3 also includes a sewage discharge electric valve 32, which is fixedly connected to the bottom of the hollow measuring column 1. When performing automatic cleaning, after the first connecting electric valve 21 and the second connecting electric valve 23 are closed, the sewage discharge electric valve 32 is controlled to open, so as to discharge the sewage generated during cleaning.

[0026] The working principle of this steam drum internal water level measuring device will be explained in detail below.

[0027] like Figures 1-4 As shown, during use, the ends of the first connecting pipe 22 and the second connecting pipe 24 are pre-installed on the steam drum. The first connecting electric valve 21 and the second connecting electric valve 23 are then opened. At this time, the inner cavity of the steam drum is connected to the inner cavity of the hollow measuring column 1. The medium inside the steam drum enters the interior of the hollow measuring column 1. The user observes the water vapor boundary line inside the hollow measuring column 1 through the transparent strip 11, and then reads the water level value by referring to the scale line 12. An external clean water source pipe is pre-connected to the inlet pipe 313. If cleaning of the inner wall of the transparent strip 11 is required, the first connecting electric valve 21 and the second connecting electric valve 23 are closed. Then, the drain electric valve 32 is opened, and the electric extension... The retractor 25 repeatedly extends and retracts, driven by the connecting arm 26 and the sliding shaft 27, which in turn drives the lifting block 28 to rise and fall as a whole. This causes the scraper 282 to scrape the inner wall of the transparent strip 11, thus achieving the function of automatic cleaning. The inlet electric valve 312 is opened, and clean water passes through the inlet pipe 313, the inlet electric valve 312 and the receiving pipe 31 into the inner cavity of the branch pipe 311. Then it is sprayed towards the right side of the inner cavity of the hollow measuring column 1, thus achieving the function of rinsing the inner wall of the transparent strip 11. After cleaning, the inlet electric valve 312 and the drain electric valve 32 are closed. Then the first connecting electric valve 21 and the second connecting electric valve 23 are controlled to restore the water level measurement function.

[0028] It should be noted that, in the description of this disclosure, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joint" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0029] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A device for measuring the water level inside a steam drum, characterized in that: The device includes a hollow measuring column, a strip-shaped through groove on the right side of the hollow measuring column, a transparent strip plate fixedly installed on the inner wall of the strip-shaped through groove, graduation lines painted on the right side of the hollow measuring column, a self-cleaning measuring mechanism and a rinsing mechanism on the hollow measuring column. The self-cleaning measuring mechanism includes an electric telescopic rod, which is fixedly installed on the back of the hollow measuring column. A connecting arm is fixedly installed at the telescopic end of the electric telescopic rod, and a sliding shaft is fixedly installed at the end of the connecting arm away from the electric telescopic rod. The sliding shaft is slidably connected to the inner wall of the hollow measuring column near the top. A lifting block located at the bottom of the inner cavity of the hollow measuring column is fixedly installed at the bottom of the sliding shaft. A sliding rod is slidably connected to the inner wall of the lifting block, and a scraper is fixedly installed at the end of the sliding rod. An elastic alloy component is fixedly installed on the side of the lifting block, and the outer wall of the elastic alloy component movably abuts against the side of the scraper.

2. The steam drum internal water level measuring device according to claim 1, characterized in that: The self-cleaning measuring mechanism also includes a No. 1 connecting electric valve and a No. 2 connecting electric valve. The No. 1 connecting electric valve is fixedly connected to the left side of the hollow measuring column, and the end of the No. 1 connecting electric valve away from the hollow measuring column is fixedly connected to a No. 1 connecting pipe.

3. The steam drum internal water level measuring device according to claim 2, characterized in that: The No. 2 connecting electric valve is fixedly connected to the left side of the hollow measuring column, and the No. 2 connecting pipe is fixedly connected to the left side of the No. 2 connecting electric valve.

4. The steam drum internal water level measuring device according to claim 1, characterized in that: The flushing mechanism includes a receiving pipe, the bottom of which is fixedly connected to a branch pipe. The number of branch pipes is set to three, and all three branch pipes are fixedly connected to the top of the hollow measuring column. An electric water inlet valve is fixedly connected to the side of the receiving pipe.

5. The steam drum internal water level measuring device according to claim 4, characterized in that: The end of the electric inlet valve away from the receiving pipe is fixedly connected to an inlet pipe. A limit ring is fixedly installed on the inner wall of the inlet pipe. A plug-in kit is movably inserted into the side of the limit ring. A ceramic filter element is fixedly connected to the side of the plug-in kit.

6. The steam drum internal water level measuring device according to claim 5, characterized in that: The flushing mechanism also includes a drain electric valve, which is fixedly connected to the bottom of the hollow measuring column.

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