CN110672179A - Boiler liquid level detection method and device, storage medium and control equipment - Google Patents
Boiler liquid level detection method and device, storage medium and control equipment Download PDFInfo
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- CN110672179A CN110672179A CN201910923537.8A CN201910923537A CN110672179A CN 110672179 A CN110672179 A CN 110672179A CN 201910923537 A CN201910923537 A CN 201910923537A CN 110672179 A CN110672179 A CN 110672179A
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- 238000003860 storage Methods 0.000 title claims abstract description 15
- 238000001514 detection method Methods 0.000 title claims description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 102
- 238000000034 method Methods 0.000 claims abstract description 26
- 238000004590 computer program Methods 0.000 claims description 19
- 238000004364 calculation method Methods 0.000 claims description 14
- 238000010438 heat treatment Methods 0.000 claims description 14
- 238000009413 insulation Methods 0.000 claims description 5
- 210000002268 wool Anatomy 0.000 claims description 3
- 230000006870 function Effects 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 230000001413 cellular effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 239000003973 paint Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000013020 steam cleaning Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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Abstract
The invention provides a method and a device for detecting the liquid level of a boiler, a storage medium and control equipment, wherein the method comprises the following steps: detecting the pressure and temperature inside the boiler and the quality of water in the boiler; acquiring a reference density of water corresponding to the pressure and temperature; calculating the volume of water in the boiler according to the mass of the water in the boiler and the reference density; and calculating the liquid level of the water in the boiler according to the shape parameters of the boiler and the volume of the water in the boiler. According to the invention, a magnetic turning plate liquid level sensor is not required to be arranged in the car washer, so that the safety performance of the car washer is improved, the internal space of the car washer can be increased to a certain extent, the volume of the car washer is reduced, the weight of the car washer is reduced, and the car washer is light and miniaturized.
Description
Technical Field
The invention relates to the technical field of boiler detection and control, in particular to a boiler liquid level detection method, a boiler liquid level detection device, a storage medium and control equipment.
Background
A steam car washer is a device which can generate steam with enough pressure and air quantity for washing a car. The steam cleaning is not only beneficial to the protection of automobile paint, but also beneficial to the environmental protection, has become a cleaning mode with the widest application at present, and is deeply loved by users.
However, the boiler liquid level detection of the steam car washer in a high-temperature and high-pressure use environment is always a bottleneck problem. At present, the water level detection is realized mainly by adopting a magnetic turning plate liquid level sensor in the prior art, but the ceramic shell of the magnetic turning plate liquid level switch is easy to crack, so that the measurement is not accurate, and even potential safety hazards are generated.
Disclosure of Invention
The invention aims to overcome the technical problems and provides a boiler liquid level detection method, a boiler liquid level detection device, a storage medium and control equipment.
In one aspect of the embodiments of the present invention, a method for detecting a liquid level of a boiler is provided, the method including:
detecting the pressure and temperature inside the boiler and the quality of water in the boiler;
acquiring a reference density of water corresponding to the pressure and temperature;
calculating the volume of water in the boiler according to the mass of the water in the boiler and the reference density;
and calculating the liquid level of the water in the boiler according to the shape parameters of the boiler and the volume of the water in the boiler.
Optionally, the obtaining a reference density of water corresponding to the pressure and temperature comprises:
and searching a preset steam density table to obtain the reference density of the water corresponding to the pressure and the temperature, wherein the steam density table comprises the corresponding relation between different pressures and temperatures and the reference density of the water.
Optionally, after calculating the level of water in the boiler according to the shape parameter of the boiler and the volume of the water in the boiler, the method further comprises:
judging whether the liquid level meets a preset safe liquid level threshold value or not;
if the liquid level meets a preset safe liquid level threshold, judging whether the pressure in the boiler meets a preset safe pressure threshold;
and if the pressure in the boiler meets a preset safe pressure threshold value, heating and controlling the boiler.
Optionally, the method further comprises:
and if the liquid level does not meet the preset safe liquid level threshold value, carrying out safe reminding and stopping heating the boiler.
Optionally, the method further comprises:
and if the pressure in the boiler does not meet the preset safe pressure threshold value, carrying out pressure relief control on the boiler.
In another aspect of the embodiments of the present invention, there is provided a boiler liquid level detecting apparatus, including:
the detection module is used for detecting the pressure and the temperature inside the boiler and the quality of water filled in the boiler;
an obtaining module for obtaining a reference density of water corresponding to the pressure and temperature;
the first calculation module is used for calculating the volume of water filled in the boiler according to the mass of the water filled in the boiler and the reference density;
and the second calculation module is used for calculating the liquid level of the water in the boiler according to the shape parameters of the boiler and the volume of the water in the boiler.
Optionally, the obtaining module is specifically configured to search a preset steam density table to obtain a reference density of water corresponding to the pressure and the temperature, where the steam density table includes a correspondence between different pressures and temperatures and the reference density of water.
Optionally, the apparatus further comprises:
the first judgment module is used for judging whether the liquid level meets a preset safe liquid level threshold value or not after the liquid level of the water in the boiler is calculated according to the shape parameters of the boiler and the volume of the water in the boiler;
the second judgment module is used for judging whether the pressure in the boiler meets a preset safe pressure threshold value or not when the judgment result of the first judgment module is that the liquid level meets the preset safe liquid level threshold value;
and the control module is used for heating and controlling the boiler when the judgment result of the second judgment module is that the pressure in the boiler meets a preset safe pressure threshold value.
Optionally, the control module is further configured to perform a safety prompt and stop heating the boiler when the determination result of the first determination module is that the liquid level does not meet a preset safety liquid level threshold; and when the judgment result of the second judgment module is that the pressure in the boiler does not meet the preset safe pressure threshold, carrying out pressure relief control on the boiler.
Furthermore, the invention also provides a computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method as described above.
In addition, the invention also provides control equipment, which comprises a sensor assembly and a controller;
the sensor assembly comprises a weight sensor arranged at the bottom of the boiler;
the controller comprises a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the steps of the method as described above when executing the program.
Optionally, the weight sensor is disposed between insulation wool and a bottom support plate of the boiler.
According to the boiler liquid level detection method, the boiler liquid level detection device, the storage medium and the control equipment, when the boiler liquid level detection is realized, a magnetic turning plate liquid level sensor does not need to be installed inside a car washer, the volume of water is calculated based on the reference density of the water corresponding to the pressure and the temperature and the mass of the water filled in the boiler by detecting the pressure and the temperature inside the boiler and finally the liquid level of the water filled in the boiler is calculated according to the shape parameters of the boiler and the volume of the water filled in the boiler. The invention not only improves the safety performance of the car washer, but also can increase the internal space of the car washer to a certain extent, reduce the volume of the car washer and the weight of the car washer, so that the car washer realizes light weight and miniaturization.
The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
FIG. 1 is a schematic flow chart of a method for detecting boiler liquid level according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart illustrating a method for detecting a boiler liquid level according to another embodiment of the present invention;
FIG. 3 is a block diagram of a boiler liquid level detection apparatus according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a boiler according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
FIG. 1 schematically shows a flow chart of a boiler level detection method of one embodiment of the present invention. Referring to fig. 1, the method for detecting the liquid level of the boiler provided by the embodiment of the invention specifically includes steps S11-S14, as follows:
and S11, detecting the pressure and the temperature inside the boiler and the quality of water in the boiler.
In this embodiment, the pressure inside the boiler can be detected by the pressure sensor at the beginning of the boiler air outlet.
In this embodiment, the control device includes a sensor assembly and a controller, such as a PLC. The sensor assembly comprises a temperature sensor arranged on the wall of the boiler and a weight sensor arranged at the bottom of the boiler, and the temperature sensor and the weight sensor are respectively used for acquiring the temperature inside the boiler and the weight of water filled in the boiler. Wherein, the weight of the water is equal to the weight value acquired by the weight sensor minus the weight of the whole boiler.
Specifically, a weight sensor is arranged between the heat insulation cotton at the bottom of the boiler and the bottom plate, and signals collected by the weight sensor are transmitted to a controller, such as a PLC; transmitting the signal of the pressure sensor to a controller, such as a PLC; transmitting the signal of the temperature sensor to a controller, such as a PLC; the controller obtains the corresponding density of the water according to the pressure and the temperature of the water;
and S12, acquiring the reference density of the water corresponding to the pressure and the temperature.
In this embodiment, the specific implementation manner of obtaining the reference density of the water corresponding to the pressure and the temperature is as follows: and searching a preset steam density table to obtain the reference density of the water corresponding to the pressure and the temperature, wherein the steam density table comprises the corresponding relation between different pressures and temperatures and the reference density of the water.
In the embodiment of the invention, because the densities of the corresponding water are different under different pressure and temperature states, the corresponding relation between the different pressure and temperature and the reference density of the water is preset, and when the pressure and the temperature in the boiler are detected, a preset steam density table can be searched according to the monitored pressure and temperature so as to obtain the reference density of the water corresponding to the pressure and the temperature.
And S13, calculating the volume of the water filled in the boiler according to the mass of the water filled in the boiler and the reference density.
And S14, calculating the liquid level of the water in the boiler according to the shape parameters of the boiler and the volume of the water in the boiler.
According to the boiler liquid level detection method provided by the embodiment of the invention, when the boiler liquid level detection is realized, a magnetic turning plate liquid level sensor is not required to be arranged in a car washer, the volume of water is calculated based on the reference density of the water corresponding to the pressure and the temperature and the mass of the water in the boiler by detecting the pressure and the temperature in the boiler and the mass of the water in the boiler, and finally the liquid level of the water in the boiler is calculated according to the shape parameters of the boiler and the volume of the water in the boiler. The invention not only improves the safety performance of the car washer, but also can increase the internal space of the car washer to a certain extent, reduce the volume of the car washer and the weight of the car washer, so that the car washer realizes light weight and miniaturization.
In the embodiment of the present invention, a square boiler is used as an example for explanation.
On the basis of the original structure of the boiler, a magnetic turning plate liquid level sensor is removed, a weighing sensor is additionally arranged at the bottom of the boiler, the internal pressure and the temperature of the boiler are monitored by a temperature sensor and a pressure sensor on the boiler, and are uploaded to a controller, the controller calculates the density of water according to the temperature and the pressure, and a specific calculation model is as follows:
m＝ρ*V
wherein m represents the mass measured by the weighing sensor minus the mass of the whole boiler, i.e. the mass of the water inside the boiler, ρ represents the density of the water at different temperatures and pressures, and V denotes the volume of the water inside the boiler.
Then, calculating the liquid level of the water in the boiler according to the shape parameters of the boiler and the volume of the water in the boiler, wherein the specific calculation model is as follows:
V＝S*H
wherein S represents the bottom area of the interior of the boiler and H represents the liquid level height.
In the embodiment, the liquid level height of water in the boiler is calculated through the method, and when all parameters meet the specified requirements, the boiler starts to work.
It should be noted that the boiler liquid level detection method provided by the invention is not only used for liquid level detection of a car washer boiler, but also can be applied to other equipment which needs to detect the water level and operates under severe environments such as high temperature and high pressure.
Referring to fig. 2, in the method for detecting a liquid level in a boiler according to the embodiment of the present invention, after calculating the liquid level of water in the boiler according to the shape parameter of the boiler and the volume of the water in the boiler, the method further includes the steps of:
s15, judging whether the liquid level meets a preset safe liquid level threshold value;
if the liquid level meets a preset safe liquid level threshold, executing a step S16, and if the liquid level does not meet the preset safe liquid level threshold, executing a step S17;
s16, judging whether the pressure in the boiler meets a preset safe pressure threshold value or not;
if the pressure inside the boiler meets a preset safe pressure threshold, executing step S18, and if the pressure inside the boiler does not meet the preset safe pressure threshold, executing step S19;
and S17, carrying out safety reminding, and stopping heating the boiler.
And S18, heating control is carried out on the boiler.
And S19, performing pressure relief control on the boiler.
In this embodiment, the safety liquid level threshold is specifically determined according to the height of the boiler internal heater, and when the liquid level is higher than the height of the boiler internal heater, the current liquid level is considered to be safe and capable of heating.
In this embodiment, the safe pressure threshold may be specifically set according to the safety performance of a specific boiler, and generally, the safe pressure threshold may be set to be less than 1.2 MPa.
In one particular example, the safety pressure threshold required for a steam car wash may be 0.7Mpa to 1.2 Mpa.
In this embodiment, when the safe threshold value that corresponds when liquid level, pressure accord simultaneously required, the boiler begins to heat, is less than the heater height when the liquid level, when safe liquid level threshold value promptly, the boiler stop heating carries out the self-protection, and when the inside pressure of boiler was too big, when being greater than 1.2MPa, the relief valve started, carries out release pressure through the pressure release copper pipe, guarantees the safe operation of equipment, improves the security performance.
For simplicity of explanation, the method embodiments are described as a series of acts or combinations, but those skilled in the art will appreciate that the embodiments are not limited by the order of acts described, as some steps may occur in other orders or concurrently with other steps in accordance with the embodiments of the invention. Further, those skilled in the art will appreciate that the embodiments described in the specification are presently preferred and that no particular act is required to implement the invention.
FIG. 3 schematically shows a structural schematic diagram of a boiler liquid level detection device according to an embodiment of the present invention. Referring to fig. 3, the boiler liquid level detection apparatus of the embodiment of the present invention specifically includes a detection module 101, an obtaining module 102, a first calculation module 103, and a second calculation module 104, where:
the detection module 101 is used for detecting the pressure and the temperature inside the boiler and the quality of water filled in the boiler;
an obtaining module 102, configured to obtain a reference density of water corresponding to the pressure and the temperature;
a first calculation module 103, configured to calculate a volume of water in the boiler according to the mass of water in the boiler and the reference density;
and a second calculation module 104 for calculating the liquid level of the water in the boiler according to the shape parameter of the boiler and the volume of the water in the boiler.
In an embodiment of the present invention, the obtaining module 102 is specifically configured to search a preset steam density table to obtain the reference density of the water corresponding to the pressure and the temperature, where the steam density table includes a corresponding relationship between different pressures and temperatures and the reference density of the water.
In an embodiment of the present invention, the apparatus further includes a first determining module and a second determining module, which are not shown in the drawings, wherein:
the first judgment module is used for judging whether the liquid level meets a preset safe liquid level threshold value or not after the liquid level of the water in the boiler is calculated according to the shape parameters of the boiler and the volume of the water in the boiler;
the second judgment module is used for judging whether the pressure in the boiler meets a preset safe pressure threshold value or not when the judgment result of the first judgment module is that the liquid level meets the preset safe liquid level threshold value;
and the control module is used for heating and controlling the boiler when the judgment result of the second judgment module is that the pressure in the boiler meets a preset safe pressure threshold value.
Further, the control module is further configured to perform safety reminding and stop heating the boiler when the judgment result of the first judgment module is that the liquid level does not meet a preset safety liquid level threshold.
Further, the control module is further configured to perform pressure relief control on the boiler when the judgment result of the second judgment module is that the pressure inside the boiler does not meet a preset safe pressure threshold.
For the device embodiment, since it is basically similar to the method embodiment, the description is simple, and for the relevant points, refer to the partial description of the method embodiment.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
According to the boiler liquid level detection method and device provided by the embodiment of the invention, when the boiler liquid level detection is realized, a magnetic turning plate liquid level sensor is not required to be arranged in a car washer, the volume of water is calculated based on the reference density of the water corresponding to the pressure and the temperature and the mass of the water in the boiler by detecting the pressure and the temperature in the boiler and the mass of the water in the boiler, and finally the liquid level of the water in the boiler is calculated according to the shape parameters of the boiler and the volume of the water in the boiler. The invention not only improves the safety performance of the car washer, but also can increase the internal space of the car washer to a certain extent, reduce the volume of the car washer and the weight of the car washer, so that the car washer realizes light weight and miniaturization.
Furthermore, an embodiment of the present invention also provides a computer-readable storage medium, on which a computer program is stored, which when executed by a processor implements the steps of the method as described above.
In this embodiment, the module/unit integrated with the boiler liquid level detection device may be stored in a computer readable storage medium if it is implemented in the form of a software functional unit and sold or used as an independent product. Based on such understanding, all or part of the flow of the method according to the embodiments of the present invention may also be implemented by a computer program, which may be stored in a computer-readable storage medium, and when the computer program is executed by a processor, the steps of the method embodiments may be implemented. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution medium, etc. It should be noted that the computer readable medium may contain content that is subject to appropriate increase or decrease as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, computer readable media does not include electrical carrier signals and telecommunications signals as is required by legislation and patent practice.
In addition, the present invention also provides a control apparatus, the control apparatus provided in the embodiment of the present invention includes a sensor assembly and a controller, wherein:
the controller includes a memory, a processor, and a computer program stored on the memory and executable on the processor, the processor when executing the computer program implementing the steps in the various boiler level detection method embodiments described above, such as S11-S14 shown in FIG. 1. Alternatively, the processor, when executing the computer program, implements the functions of the modules/units in the embodiments of the boiler liquid level detection apparatus described above, such as the detection module 101, the obtaining module 102, the first calculation module 103, and the second calculation module 104 shown in fig. 3.
In this embodiment, the sensor assembly includes a weight sensor disposed at a bottom of the boiler. Further, the weight sensor is disposed between the heat insulation cotton of the boiler and the bottom support plate.
Further, the number of the weight sensors can be one or more, and can be set according to actual measurement needs.
Fig. 4 is a schematic structural diagram of a boiler according to an embodiment of the present invention. In a specific embodiment, the boiler comprises a boiler body 6, a bottom support plate 8 arranged at the bottom of the boiler body 6, at least one heater 9 arranged at one side of the boiler body 6, a temperature sensor 3 arranged at the side wall of the boiler body 6, an air outlet connected with the inside of the boiler body 6, and a pressure relief copper pipe 5 and a pressure sensor 1 which are respectively connected with the air outlet; the pressure relief copper pipe 5 is connected with the air outlet through a safety valve 4, and the pressure sensor 1 is connected with the air outlet through a connecting copper pipe 2.
Referring to fig. 4, in the present embodiment, the sensor assembly includes two weight sensors 7 respectively disposed between the heat insulation wool (not shown) of the boiler body 6 and the bottom support plate according to actual measurement requirements.
Illustratively, the computer program may be partitioned into one or more modules/units that are stored in the memory and executed by the processor to implement the invention. The one or more modules/units may be a series of computer program instruction segments capable of performing specific functions, which are used to describe the execution of the computer program in the boiler level detection apparatus. For example, the computer program may be divided into a detection module 101, an acquisition module 102, a first calculation module 103 and a second calculation module 104.
The control device may include, but is not limited to, a processor, a memory. Those skilled in the art will appreciate that the control device in this embodiment may include more or fewer components, or combine certain components, or different components, for example, the control device may also include an input-output device, a network access device, a bus, etc.
The Processor may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, discrete hardware component, etc. The general purpose processor may be a microprocessor or the processor may be any conventional processor or the like, the processor being the control center for the control device, with various interfaces and lines connecting the various parts of the overall control device.
The memory may be used to store the computer programs and/or modules, and the processor may implement the various functions of the control device by running or executing the computer programs and/or modules stored in the memory, as well as by invoking data stored in the memory. The memory may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating device, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. In addition, the memory may include high speed random access memory, and may also include non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), at least one magnetic disk storage device, a Flash memory device, or other volatile solid state storage device.
Those skilled in the art will appreciate that while some embodiments herein include some features included in other embodiments, rather than others, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the following claims, any of the claimed embodiments may be used in any combination.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (12)
1. A method of detecting boiler liquid level, the method comprising:
detecting the pressure and temperature inside the boiler and the quality of water in the boiler;
acquiring a reference density of water corresponding to the pressure and temperature;
calculating the volume of water in the boiler according to the mass of the water in the boiler and the reference density;
and calculating the liquid level of the water in the boiler according to the shape parameters of the boiler and the volume of the water in the boiler.
2. The boiler level detection method of claim 1, wherein said obtaining a reference density of water corresponding to said pressure and temperature comprises:
and searching a preset steam density table to obtain the reference density of the water corresponding to the pressure and the temperature, wherein the steam density table comprises the corresponding relation between different pressures and temperatures and the reference density of the water.
3. The boiler level detection method according to claim 1 or 2, wherein after calculating the level of the water filled in the boiler based on the shape parameter of the boiler and the volume of the water filled in the boiler, the method further comprises:
judging whether the liquid level meets a preset safe liquid level threshold value or not;
if the liquid level meets a preset safe liquid level threshold, judging whether the pressure in the boiler meets a preset safe pressure threshold;
and if the pressure in the boiler meets a preset safe pressure threshold value, heating and controlling the boiler.
4. The boiler level detection method of claim 3, further comprising:
and if the liquid level does not meet the preset safe liquid level threshold value, carrying out safe reminding and stopping heating the boiler.
5. The boiler level detection method of claim 3, further comprising:
and if the pressure in the boiler does not meet the preset safe pressure threshold value, carrying out pressure relief control on the boiler.
6. A boiler liquid level detection apparatus, the apparatus comprising:
the detection module is used for detecting the pressure and the temperature inside the boiler and the quality of water filled in the boiler;
an obtaining module for obtaining a reference density of water corresponding to the pressure and temperature;
the first calculation module is used for calculating the volume of water filled in the boiler according to the mass of the water filled in the boiler and the reference density;
and the second calculation module is used for calculating the liquid level of the water in the boiler according to the shape parameters of the boiler and the volume of the water in the boiler.
7. The boiler liquid level detection device according to claim 6, wherein the obtaining module is specifically configured to look up a preset steam density table to obtain the reference density of water corresponding to the pressure and the temperature, and the steam density table includes corresponding relationships between different pressures and temperatures and the reference density of water.
8. The boiler level detection apparatus according to claim 6 or 7, wherein the apparatus further comprises:
the first judgment module is used for judging whether the liquid level meets a preset safe liquid level threshold value or not after the liquid level of the water in the boiler is calculated according to the shape parameters of the boiler and the volume of the water in the boiler;
the second judgment module is used for judging whether the pressure in the boiler meets a preset safe pressure threshold value or not when the judgment result of the first judgment module is that the liquid level meets the preset safe liquid level threshold value;
and the control module is used for heating and controlling the boiler when the judgment result of the second judgment module is that the pressure in the boiler meets a preset safe pressure threshold value.
9. The boiler liquid level detection device according to claim 8, wherein the control module is further configured to perform a safety prompt and stop heating the boiler when the judgment result of the first judgment module is that the liquid level does not satisfy a preset safety liquid level threshold; and when the judgment result of the second judgment module is that the pressure in the boiler does not meet the preset safe pressure threshold, carrying out pressure relief control on the boiler.
10. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 5.
11. A control apparatus comprising a sensor assembly and a controller;
the sensor assembly comprises a weight sensor arranged at the bottom of the boiler;
the controller comprises a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the steps of the method according to any of claims 1-5 when executing the program.
12. The control apparatus of claim 11, wherein the weight sensor is disposed between insulation wool and a bottom support plate of the boiler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910923537.8A CN110672179A (en) | 2019-09-27 | 2019-09-27 | Boiler liquid level detection method and device, storage medium and control equipment |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111939594A (en) * | 2020-07-25 | 2020-11-17 | 山东泰邦生物制品有限公司 | Stirring method of adsorption tank |
| CN112139468A (en) * | 2020-09-30 | 2020-12-29 | 东北大学 | Method and device for detecting liquid level of strip continuous casting distribution bag |
| CN112485037A (en) * | 2020-12-10 | 2021-03-12 | 深圳市道中创新科技有限公司 | Steam car washing machine control method and device, computer equipment and storage medium |
| CN112504715A (en) * | 2020-12-10 | 2021-03-16 | 深圳市道中创新科技有限公司 | Fault information processing method and device, computer equipment and storage medium |
| CN113295242A (en) * | 2021-04-23 | 2021-08-24 | 杭州海芯达科技有限公司 | Boiler full-temperature constant standard liquid level measurement method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2194339A (en) * | 1986-08-23 | 1988-03-02 | Marie Pierre Wilson | A data recording depth gauge |
| CN101270872A (en) * | 2008-05-01 | 2008-09-24 | 刘德胜 | Combustion energy-saving automatic control device of coal-burning chain boiler |
| CN101539288A (en) * | 2008-10-29 | 2009-09-23 | 俞沿宝 | Controller for electric heating steam generator |
| CN102080979A (en) * | 2010-11-18 | 2011-06-01 | 杭州中美华东制药有限公司 | Method for measuring liquid level of fermentation tank |
| CN104214819A (en) * | 2014-09-17 | 2014-12-17 | 湖北兴发化工集团股份有限公司 | Fully automatic constant-temperature and constant-pressure water supply system |
| CN106352827A (en) * | 2016-08-04 | 2017-01-25 | 珠海格力电器股份有限公司 | Detection device and method for detecting installation drop and air conditioning system control method |
| CN206269882U (en) * | 2016-12-07 | 2017-06-20 | 苏州阿洛斯环境发生器有限公司 | A kind of dangerous liquid metering system |
-
2019
- 2019-09-27 CN CN201910923537.8A patent/CN110672179A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2194339A (en) * | 1986-08-23 | 1988-03-02 | Marie Pierre Wilson | A data recording depth gauge |
| CN101270872A (en) * | 2008-05-01 | 2008-09-24 | 刘德胜 | Combustion energy-saving automatic control device of coal-burning chain boiler |
| CN101539288A (en) * | 2008-10-29 | 2009-09-23 | 俞沿宝 | Controller for electric heating steam generator |
| CN102080979A (en) * | 2010-11-18 | 2011-06-01 | 杭州中美华东制药有限公司 | Method for measuring liquid level of fermentation tank |
| CN104214819A (en) * | 2014-09-17 | 2014-12-17 | 湖北兴发化工集团股份有限公司 | Fully automatic constant-temperature and constant-pressure water supply system |
| CN106352827A (en) * | 2016-08-04 | 2017-01-25 | 珠海格力电器股份有限公司 | Detection device and method for detecting installation drop and air conditioning system control method |
| CN206269882U (en) * | 2016-12-07 | 2017-06-20 | 苏州阿洛斯环境发生器有限公司 | A kind of dangerous liquid metering system |
Non-Patent Citations (1)
| Title |
|---|
| 洪向道: "《锅炉房实用设计手册》", 31 January 2001, 机械工业出版社 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111939594A (en) * | 2020-07-25 | 2020-11-17 | 山东泰邦生物制品有限公司 | Stirring method of adsorption tank |
| CN112139468A (en) * | 2020-09-30 | 2020-12-29 | 东北大学 | Method and device for detecting liquid level of strip continuous casting distribution bag |
| CN112485037A (en) * | 2020-12-10 | 2021-03-12 | 深圳市道中创新科技有限公司 | Steam car washing machine control method and device, computer equipment and storage medium |
| CN112504715A (en) * | 2020-12-10 | 2021-03-16 | 深圳市道中创新科技有限公司 | Fault information processing method and device, computer equipment and storage medium |
| CN112485037B (en) * | 2020-12-10 | 2023-05-26 | 深圳市道中创新科技有限公司 | Steam car washer control method, device, computer equipment and storage medium |
| CN112504715B (en) * | 2020-12-10 | 2023-08-08 | 深圳市道中创新科技有限公司 | Fault information processing method, device, computer equipment and storage medium |
| CN113295242A (en) * | 2021-04-23 | 2021-08-24 | 杭州海芯达科技有限公司 | Boiler full-temperature constant standard liquid level measurement method |
| CN113295242B (en) * | 2021-04-23 | 2024-03-19 | 杭州海芯达科技有限公司 | Method for measuring total-temperature constant standard liquid level of boiler |
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