CN112304389A - Automatic intelligent boiler drum level gauge of calibration - Google Patents
Automatic intelligent boiler drum level gauge of calibration Download PDFInfo
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- CN112304389A CN112304389A CN202011169911.9A CN202011169911A CN112304389A CN 112304389 A CN112304389 A CN 112304389A CN 202011169911 A CN202011169911 A CN 202011169911A CN 112304389 A CN112304389 A CN 112304389A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/02—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by gauge glasses or other apparatus involving a window or transparent tube for directly observing the level to be measured or the level of a liquid column in free communication with the main body of the liquid
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
- G01F25/20—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of apparatus for measuring liquid level
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- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The invention relates to the field of liquid level meter devices, and particularly discloses an automatic-calibration intelligent boiler drum liquid level meter, which comprises a metal cylinder, a calibration cylinder, a liquid level measuring element, a liquid phase pipe and a gas phase pipe, wherein the metal cylinder is connected with the calibration cylinder; the calibration cylinder body and the metal cylinder body are arranged in parallel, the bottom parts of the metal cylinder body and the calibration cylinder body are communicated together through a calibration liquid pipe, and a third electromagnetic valve is arranged on the calibration liquid pipe; the other end of the three-way pipe communicated with the bottom of the liquid discharge pipe is communicated with the bottom of the checking cylinder through a return pipe, and a return motor is arranged on the return pipe; the top end of the liquid level measuring element is connected with an adjusting electric cylinder. The calibration cylinder communicated with the metal cylinder controls the opening of different valves and elements through the controller, so that the calibration is separated from the detection of the liquid level meter, and the accurate calibration of the liquid level meter is ensured; the correction is automatically carried out through the controller in the correction process, manual operation is not needed, and the labor intensity of the project is reduced.
Description
Technical Field
The invention relates to the field of liquid level meter devices, in particular to an automatic-calibration intelligent boiler drum liquid level meter.
Background
The boiler is an energy conversion device, the energy input to the boiler comprises chemical energy and electric energy in fuel, and the boiler outputs steam, high-temperature water or an organic heat carrier with certain heat energy. The boiler is a water container heated on fire, a furnace is a place where fuel is combusted, and the boiler comprises a boiler and a furnace. The hot water or steam generated in the boiler can directly provide heat energy for industrial production and people life, and can also be converted into mechanical energy through a steam power device, or the mechanical energy is converted into electric energy through a generator. The boiler for supplying hot water is called a hot water boiler, is mainly used for life, and has a small amount of application in industrial production. The boiler for generating steam is called as a steam boiler, often called as a boiler for short, and is widely used for thermal power stations, ships, locomotives and industrial and mining enterprises. The height of the liquid medium in the container is called the liquid level, and the instrument for measuring the liquid level is called a liquid level meter. The liquid level meter is one of level meters.
When the existing boiler drum liquid level meter is used, due to long-time use, the measurement of the liquid level meter is not accurate enough, manual check and adjustment are needed, the use difficulty of the liquid level meter is increased, and professional staff are needed to regularly maintain, so that the existing boiler drum liquid level meter needs to be improved, and the problems are solved.
Disclosure of Invention
The invention aims to provide an automatic-calibration intelligent boiler drum liquid level meter to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
an automatically calibrated intelligent boiler drum liquid level meter comprises a metal cylinder, a calibration cylinder, a liquid level measuring element, a liquid phase pipe and a gas phase pipe; the liquid level measuring element is arranged in the metal cylinder, a liquid phase pipe is communicated with the bottom of the metal cylinder by measuring the liquid level of hot water entering the metal cylinder, a gas phase pipe is communicated with the top of the metal cylinder, the other ends of the liquid phase pipe and the gas phase pipe are both communicated in the boiler steam drum, and liquid in the boiler steam drum enters the liquid level measuring element from the liquid phase pipe at the bottom; the liquid phase pipe and the gas phase pipe are respectively and correspondingly provided with a first electromagnetic valve and a second electromagnetic valve which respectively control the connection and disconnection of the liquid phase pipe and the gas phase pipe; the bottom of the metal cylinder is communicated with a liquid discharge pipe, so that residual water in the metal cylinder can be discharged outwards from the liquid discharge pipe, the lower end of the liquid discharge pipe is communicated with a vertically downward cleaning pipe through a three-way pipe, a fourth electromagnetic valve is mounted on the cleaning pipe, and the water discharged from the liquid discharge pipe is sent outwards by opening the fourth electromagnetic valve; the calibration cylinder body and the metal cylinder body are arranged in parallel, the bottom of the metal cylinder body is communicated with the bottom of the calibration cylinder body through a calibration liquid pipe, a third electromagnetic valve is arranged on the calibration liquid pipe, the on-off of the calibration liquid pipe is controlled through the third electromagnetic valve, and after the calibration liquid pipe is opened, liquid in the calibration cylinder body can enter the metal cylinder body; the other end of the three-way pipe communicated with the bottom of the liquid discharge pipe is communicated with the bottom of the checking cylinder through a return pipe, a return motor is arranged on the return pipe, and the measuring liquid in the metal cylinder is pumped back into the checking cylinder through the return motor so as to be discharged from the metal cylinder in time; a liquid level sensor is arranged in the calibration cylinder body and used for monitoring the liquid level height in the calibration cylinder body so as to ensure that the volume of the measurement liquid in the calibration cylinder body is constant; the liquid level measuring element is slidably mounted in the metal cylinder, the top end of the liquid level measuring element is connected with an adjusting electric cylinder, the adjusting electric cylinder is mounted outside the top end of the checking cylinder, and the height of the liquid level measuring element is driven to be adjusted through the adjusting electric cylinder.
Further: first solenoid valve, second solenoid valve, third solenoid valve, fourth solenoid valve, backflow motor and level sensor electric connection are on the controller, as required, open and close through first solenoid valve, second solenoid valve, third solenoid valve, fourth solenoid valve, backflow motor and level sensor of controller control, realize different functions.
Further: when the liquid level meter is required to measure the liquid level, the controller controls the first electromagnetic valve and the second electromagnetic valve to open, and simultaneously the third electromagnetic valve, the fourth electromagnetic valve, the reflux motor and the liquid level sensor to close, so that the metal cylinder body is communicated with a boiler steam drum to be measured through a liquid phase pipe and a gas phase pipe, and the liquid level measurement is realized; when the liquid level timing needs to be adjusted, the adjusting process comprises a transition interval, a calibration interval and a return interval, and the intervals of the transition interval, the calibration interval and the return interval are controlled by setting a timer in a controller; starting a liquid level regulation timer, firstly entering a transition interval, controlling a fourth electromagnetic valve to open by a controller in the transition interval, closing a first electromagnetic valve, a second electromagnetic valve, a third electromagnetic valve, a reflux motor and a liquid level sensor at the same time, emptying residual liquid in the metal cylinder through the opened fourth electromagnetic valve, and keeping the metal cylinder in a hollow structure; after the transition interval is ended, entering a calibration interval, controlling a third electromagnetic valve to be opened by a controller in the calibration interval, closing a first electromagnetic valve, a second electromagnetic valve, a fourth electromagnetic valve, a reflux motor and a liquid level sensor at the same time, communicating a correction liquid pipe, sending quantitative measuring liquid in a calibration cylinder into the calibration cylinder from the correction liquid pipe until the metal cylinder and the liquid in the calibration cylinder are on the same horizontal plane, measuring the height of the liquid in the metal cylinder by a liquid level measuring element at the moment, calculating the theoretical liquid height in the liquid level measuring element according to the volume of the liquid in the calibration cylinder, comparing the difference between the theoretical liquid height and the liquid height, adjusting the height of the liquid level measuring element according to the difference until the theoretical height is the same, and calibrating the measuring height of the liquid level measuring element; after the calibration interval, start the return interval, controller control return motor and level sensor open in the return interval, first solenoid valve simultaneously, the second solenoid valve, the third solenoid valve, the fourth solenoid valve is closed, return motor is internal with the measuring liquid suction of metal cylinder to the calibration cylinder, retrieve measuring liquid, until with in the liquid suction to the calibration cylinder, detect the liquid level height of measuring liquid in the calibration cylinder through level sensor, when the liquid level is not enough, can mend the position until level sensor in to the calibration cylinder through the outside pipeline, ensure that the liquid level in the calibration cylinder is invariable next time. And after the return interval is finished, the liquid level measurement control position is entered again.
Further: and during adjustment, the liquid level measuring element is driven to change the height, and the liquid level measuring element is adjusted after quantitative measuring liquid enters the metal cylinder, so that the quantitative height is the same as the height measured by the liquid level measuring element, and the adjustment is realized.
Further: the volume of the checking cylinder body is the same as that of the metal cylinder body, so that the liquid of the measuring liquid in the checking cylinder body after entering the metal cylinder body does not exceed the height of the gas phase pipe, and the liquid entering the metal cylinder body is ensured to be at a proper height position.
Further: and a vent valve is arranged on the top end of the checking cylinder body, and the vent valve realizes ventilation between the inside and the outside of the checking cylinder body.
Further: the outside cover of metal barrel is equipped with the heating mantle, and the heating mantle parcel is installed the heating pipe in the heating mantle in the outside of metal barrel, and the both ends of heating pipe communicate inlet tube and outlet pipe respectively, heat the outer wall of metal barrel.
Further: the heating pipe is of a spiral structure, and the spiral sleeve is arranged on the outer side of the metal cylinder body, so that the heating effect on the metal cylinder body is improved, the temperature in the metal cylinder body is improved, and the liquid entering the gas phase pipe cannot be liquefied and enter the metal cylinder body due to temperature reduction, so that the measuring result of the liquid level measuring element is not influenced.
Compared with the prior art, the invention has the beneficial effects that: the calibration cylinder communicated with the metal cylinder controls the opening of different valves and elements through the controller, so that the calibration is separated from the detection of the liquid level meter, and the accurate calibration of the liquid level meter is ensured; the correction is automatically carried out through the controller in the correction process, manual operation is not needed, correction can be frequently carried out, the labor intensity of engineering is reduced, and the accuracy of the liquid level meter is also ensured.
Drawings
FIG. 1 is a schematic diagram of an automatically calibrated intelligent boiler drum level gauge.
FIG. 2 is a control flow diagram of an automatically calibrated intelligent boiler drum level gauge.
FIG. 3 is a schematic diagram of a heater jacket in an automatically calibrated intelligent boiler drum level gauge.
In the figure: 1-metal cylinder, 2-calibration cylinder, 3-liquid level measuring element, 4-liquid phase pipe, 5-gas phase pipe, 6-first electromagnetic valve, 7-second electromagnetic valve, 8-heating pipe, 9-water inlet pipe, 10-water outlet pipe, 11-correction fluid pipe, 12-third electromagnetic valve, 13-return pipe, 14-return motor, 15-starting electric cylinder, 16-vent valve, 17-liquid level sensor, 18-liquid discharge pipe, 19-cleaning pipe, 20-fourth electromagnetic valve, 21-controller and 22-heating cover.
Detailed Description
Example 1
Referring to the drawing, in the embodiment of the invention, an automatic calibration intelligent boiler drum liquid level meter comprises a metal cylinder 1, a calibration cylinder 2, a liquid level measuring element 3, a liquid phase pipe 4 and a gas phase pipe 5; the liquid level measuring element 3 is arranged in the metal cylinder 1, the liquid level of hot water entering the metal cylinder 1 is measured through the liquid level measuring element 3, the liquid phase pipe 4 is communicated with the bottom of the metal cylinder 1, the gas phase pipe 5 is communicated with the top of the metal cylinder 1, the other ends of the liquid phase pipe 4 and the gas phase pipe 5 are communicated in a boiler steam drum, and liquid in the boiler steam drum enters the liquid level measuring element 3 from the liquid phase pipe 4 at the bottom.
The liquid phase pipe 4 and the gas phase pipe 5 are respectively and correspondingly provided with a first electromagnetic valve 6 and a second electromagnetic valve 7, and the on-off of the liquid phase pipe 4 and the on-off of the gas phase pipe 5 are respectively controlled; the bottom of the metal cylinder 1 is communicated with a liquid discharge pipe 18, residual water in the metal cylinder 1 can be discharged outwards from the liquid discharge pipe 18, the lower end of the liquid discharge pipe 18 is communicated with a vertically downward cleaning pipe 19 through a three-way pipe, a fourth electromagnetic valve 20 is installed on the cleaning pipe 19, and the water discharged from the liquid discharge pipe 18 is sent outwards by opening the fourth electromagnetic valve 20.
The calibration cylinder 2 is arranged in parallel with the metal cylinder 1, preferably, the calibration cylinder 2 and the metal cylinder 1 have the same volume, so that the liquid of the measurement liquid in the calibration cylinder 2 after entering the metal cylinder 1 does not exceed the height of the gas-phase pipe 5, and the liquid entering the metal cylinder 1 is ensured to be at a proper height position; the metal cylinder 1 is communicated with the bottom of the verification cylinder 2 through a correction liquid pipe 11, a third electromagnetic valve 12 is arranged on the correction liquid pipe 11, the correction liquid pipe 11 is controlled to be switched on and off through the third electromagnetic valve 12, and after the correction liquid pipe is switched on, liquid in the verification cylinder 2 can enter the metal cylinder 1; the other end of the three-way pipe communicated with the bottom of the liquid discharge pipe 18 is communicated with the bottom of the checking cylinder 2 through a return pipe 13, a return motor 14 is arranged on the return pipe 13, the measuring liquid in the metal cylinder 1 is pumped back into the checking cylinder 2 through the return motor 14, and the measuring liquid is discharged from the metal cylinder 1 in time; a vent valve 16 is arranged at the top end of the verification cylinder 2, and the vent valve 16 realizes ventilation between the inside and the outside of the verification cylinder 2; a liquid level sensor 17 is installed in the calibration cylinder 2 and used for monitoring the liquid level in the calibration cylinder 2, so that the volume of the measurement liquid in the calibration cylinder 2 is constant.
The liquid level measuring element 3 is slidably mounted in the metal cylinder body 1, the top end of the liquid level measuring element 3 is connected with the adjusting electric cylinder 15, the adjusting electric cylinder 15 is mounted outside the top end of the checking cylinder body 2, the liquid level measuring element 3 is driven to be adjusted in height through the adjusting electric cylinder 15, the adjusting electric cylinder 15 drives the liquid level measuring element 3 to change the height when the liquid level measuring element is adjusted, the liquid level measuring element 3 is adjusted after quantitative measuring liquid enters the metal cylinder body 1, the quantitative height is the same as the height measured by the liquid level measuring element 3, and adjustment is achieved.
The first electromagnetic valve 6, the second electromagnetic valve 7, the third electromagnetic valve 12, the fourth electromagnetic valve 20, the backflow motor 14 and the liquid level sensor 17 are electrically connected to the controller 21, and the first electromagnetic valve 6, the second electromagnetic valve 7, the third electromagnetic valve 12, the fourth electromagnetic valve 20, the backflow motor 14 and the liquid level sensor 17 are controlled to be opened and closed through the controller 21 as required, so that different functions are achieved. Specifically, when the liquid level meter is required to measure the liquid level, the controller 21 controls the first electromagnetic valve 6 and the second electromagnetic valve 7 to be opened, and simultaneously the third electromagnetic valve 12, the fourth electromagnetic valve 20, the reflux motor 14 and the liquid level sensor 17 to be closed, so that the interior of the metal cylinder 1 is communicated with a boiler steam pocket to be measured through the liquid phase pipe 4 and the gas phase pipe 5, and the liquid level measurement is realized; when the liquid level timing needs to be adjusted, the adjusting process comprises a transition interval, a calibration interval and a return interval, and the intervals of the transition interval, the calibration interval and the return interval are controlled by setting a timer in a controller; starting a liquid level regulation timer, firstly entering a transition interval, controlling the fourth electromagnetic valve 20 to be opened by the controller 21 during the transition period, closing the first electromagnetic valve 6, the second electromagnetic valve 7, the third electromagnetic valve 12, the reflux motor 14 and the liquid level sensor 17 at the same time, emptying residual liquid in the metal cylinder 1 through the opened fourth electromagnetic valve 20, and keeping the interior of the metal cylinder 1 in a hollow structure; after the transition interval is finished, entering a calibration interval, wherein the controller 21 controls the third electromagnetic valve 12 to be opened in the calibration interval, and simultaneously the first electromagnetic valve 6, the second electromagnetic valve 7, the fourth electromagnetic valve 20, the reflux motor 14 and the liquid level sensor 17 are closed, so that the correction liquid pipe 11 is communicated, quantitative measurement liquid in the verification cylinder 2 is sent into the verification cylinder 2 from the correction liquid pipe 11 until the liquid in the metal cylinder 1 and the liquid in the verification cylinder 2 are on the same horizontal plane, the liquid height in the metal cylinder 1 is measured through the liquid level measurement element 3 at the moment, the theoretical liquid height in the liquid level measurement element 3 is calculated according to the volume of the liquid in the verification cylinder 2, the difference between the two is compared, the height of the liquid level measurement element 3 is adjusted according to the difference until the height is the same as the theoretical height, and the calibration of the measurement height of; after the calibration interval, start the return interval, controller 21 controls return motor 14 and level sensor 17 and opens in the return interval, first solenoid valve 6 simultaneously, second solenoid valve 7, third solenoid valve 12, fourth solenoid valve 20 closes, return motor 14 is with the interior measuring liquid suction of metal cylinder 1 to the check barrel 2 in, retrieve measuring liquid, until with in the liquid suction to the check barrel 2, detect the liquid level height of measuring liquid in the check barrel 2 through level sensor 17, when the liquid level is not enough, can fill in the position until level sensor 17 in to check barrel 2 through the outside pipeline, ensure that the liquid level in the check barrel 2 is invariable next time. And after the return interval is finished, the liquid level measurement control position is entered again.
Example 2
On embodiment 1's basis, the outside cover of metal barrel 1 is equipped with heating mantle 22, heating mantle 22 parcel is in metal barrel 1's outside, install heating pipe 8 in heating mantle 22, the both ends of heating pipe 8 communicate inlet tube 9 and outlet pipe 10 respectively, heat the outer wall of metal barrel 1, it is preferred, heating pipe 8 is helical structure, the spiral cover is in metal barrel 1's the outside, the improvement is to metal barrel 1's heating effect, thereby improve the temperature in the metal barrel 1, make the interior liquid that gets into of gas phase pipe 5 can not be because of the temperature reduction liquefaction enter into metal barrel 1 in, influence liquid level measurement element 3's measuring result.
When the liquid level of the boiler drum is measured, the first electromagnetic valve 6 and the second electromagnetic valve 7 are opened, so that the interior of the metal cylinder body 1 is communicated with the interior of the boiler drum, and the liquid level measurement is carried out; when calibration is needed, the controller 21 controls the first electromagnetic valve 6 and the second electromagnetic valve 7 to be closed, quantitative liquid in the calibration cylinder 2 is sent into the metal cylinder 1, the height of the liquid in the metal cylinder 1 is the same as that of the liquid in the calibration cylinder 2, the theoretical height in the metal cylinder 1 is calculated according to the original liquid volume in the calibration cylinder 2, comparison is carried out according to the height measured by the liquid level measuring element 3, and then the liquid level measuring element 3 is adjusted until the standard position is adjusted; and finally, the liquid in the metal cylinder 1 is sent into the verification cylinder 2.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (9)
1. An automatically calibrated intelligent boiler drum liquid level meter comprises a metal cylinder (1), a calibration cylinder (2), a liquid level measuring element (3), a liquid phase pipe (4) and a gas phase pipe (5); the liquid level measuring element (3) is arranged in the metal barrel (1), the liquid phase pipe (4) is communicated with the bottom of the metal barrel (1), the gas phase pipe (5) is communicated with the top of the metal barrel (1), the liquid level measuring element is characterized in that the liquid phase pipe (4) and the gas phase pipe (5) are respectively and correspondingly provided with a first electromagnetic valve (6) and a second electromagnetic valve (7), the bottom of the metal barrel (1) is communicated with a liquid discharge pipe (18), the lower end of the liquid discharge pipe (18) is communicated with a vertically downward cleaning pipe (19) through a three-way pipe, and the cleaning pipe (19) is provided with a fourth electromagnetic valve (20); the calibration cylinder body (2) and the metal cylinder body (1) are arranged in parallel, the bottom of the metal cylinder body (1) is communicated with the bottom of the calibration cylinder body (2) through a calibration liquid pipe (11), and a third electromagnetic valve (12) is installed on the calibration liquid pipe (11); the other end of the three-way pipe communicated with the bottom of the liquid discharge pipe (18) is communicated with the bottom of the calibration cylinder body (2) through a return pipe (13), and a return motor (14) is installed on the return pipe (13); a liquid level sensor (17) is arranged in the checking cylinder body (2); the liquid level measuring element (3) is slidably mounted in the metal cylinder body (1), the top end of the liquid level measuring element (3) is connected with an adjusting electric cylinder (15), the adjusting electric cylinder (15) is mounted outside the top end of the checking cylinder body (2), and the liquid level measuring element (3) is driven to be adjusted in height through the adjusting electric cylinder (15).
2. The automatically calibrated intelligent boiler drum level gauge according to claim 1, wherein: the first electromagnetic valve (6), the second electromagnetic valve (7), the third electromagnetic valve (12), the fourth electromagnetic valve (20), the backflow motor (14) and the liquid level sensor (17) are electrically connected to the controller (21).
3. An automatically calibrated intelligent boiler drum level gauge according to claim 2, wherein: when the liquid level meter is required to measure the liquid level, the controller (21) controls the first electromagnetic valve (6) and the second electromagnetic valve (7) to be opened, and meanwhile, the third electromagnetic valve (12), the fourth electromagnetic valve (20), the reflux motor (14) and the liquid level sensor (17) are closed.
4. An automatically calibrated intelligent boiler drum level gauge according to claim 3, wherein: when the liquid level timing needs to be adjusted, the adjusting process comprises a transition interval, a calibration interval and a return interval, and the intervals of the transition interval, the calibration interval and the return interval are controlled by setting a timer in a controller; starting a liquid level regulation timer, firstly entering a transition interval, wherein a controller (21) controls a fourth electromagnetic valve (20) to be opened during the transition interval, and simultaneously a first electromagnetic valve (6), a second electromagnetic valve (7), a third electromagnetic valve (12), a reflux motor (14) and a liquid level sensor (17) are closed; after the transition interval is finished, entering a calibration interval, wherein a controller (21) in the calibration interval controls a third electromagnetic valve (12) to be opened, and meanwhile, a first electromagnetic valve (6), a second electromagnetic valve (7), a fourth electromagnetic valve (20), a reflux motor (14) and a liquid level sensor (17) are closed, so that a calibration liquid pipe (11) is communicated, quantitative measurement liquid in a calibration cylinder body (2) is sent into the calibration cylinder body (2) from the calibration liquid pipe (11) until the metal cylinder body (1) and the liquid in the calibration cylinder body (2) are on the same horizontal plane; after the calibration interval is finished, the return interval is started, the controller (21) in the return interval controls the return motor (14) and the liquid level sensor (17) to be opened, meanwhile, the first electromagnetic valve (6), the second electromagnetic valve (7), the third electromagnetic valve (12) and the fourth electromagnetic valve (20) are closed, and the return motor (14) pumps the measuring liquid in the metal cylinder body (1) into the calibration cylinder body (2).
5. An automatically calibrated intelligent boiler drum level gauge according to claim 4, wherein: during adjustment, the adjusting electric cylinder (15) drives the liquid level measuring element (3) to change the height.
6. An automatically calibrated intelligent boiler drum level gauge according to claim 5, wherein: the volume of the checking cylinder (2) is the same as that of the metal cylinder (1).
7. The automatically calibrated intelligent boiler drum level gauge according to claim 1, wherein: a vent valve (16) is mounted on the top end of the verification cylinder (2).
8. An automatically calibrated intelligent boiler drum level gauge according to any one of claims 1 to 7, wherein: the outside cover of metal barrel (1) is equipped with heating cover (22), and heating cover (22) parcel is in the outside of metal barrel (1), installs heating pipe (8) in heating cover (22), and the both ends of heating pipe (8) communicate inlet tube (9) and outlet pipe (10) respectively.
9. The automatically calibrated intelligent boiler drum level gauge according to claim 8, wherein: the heating pipe (8) is of a spiral structure and is spirally sleeved outside the metal cylinder body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011169911.9A CN112304389A (en) | 2020-10-28 | 2020-10-28 | Automatic intelligent boiler drum level gauge of calibration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011169911.9A CN112304389A (en) | 2020-10-28 | 2020-10-28 | Automatic intelligent boiler drum level gauge of calibration |
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| Publication Number | Publication Date |
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| CN112304389A true CN112304389A (en) | 2021-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011169911.9A Withdrawn CN112304389A (en) | 2020-10-28 | 2020-10-28 | Automatic intelligent boiler drum level gauge of calibration |
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| CN (1) | CN112304389A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113418583A (en) * | 2021-05-24 | 2021-09-21 | 杭州海芯达科技有限公司 | Detection apparatus for boiler drum level gauge |
| CN113418582A (en) * | 2021-05-24 | 2021-09-21 | 杭州海芯达科技有限公司 | Automatic calibration device of boiler drum level gauge |
-
2020
- 2020-10-28 CN CN202011169911.9A patent/CN112304389A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113418583A (en) * | 2021-05-24 | 2021-09-21 | 杭州海芯达科技有限公司 | Detection apparatus for boiler drum level gauge |
| CN113418582A (en) * | 2021-05-24 | 2021-09-21 | 杭州海芯达科技有限公司 | Automatic calibration device of boiler drum level gauge |
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Application publication date: 20210202 |
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