CN115325813B - Temperature control method and system of terrace dryer - Google Patents
Temperature control method and system of terrace dryer Download PDFInfo
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- CN115325813B CN115325813B CN202211004787.XA CN202211004787A CN115325813B CN 115325813 B CN115325813 B CN 115325813B CN 202211004787 A CN202211004787 A CN 202211004787A CN 115325813 B CN115325813 B CN 115325813B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B23/00—Heating arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B30/00—Heat pumps
- F25B30/02—Heat pumps of the compression type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
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- Drying Of Solid Materials (AREA)
Abstract
The invention discloses a temperature control system of a floor dryer, and particularly relates to the technical field of intelligent control systems, comprising the following components: the control unit is controlled by a central controller, the central controller is internally arranged in the host, and a rated temperature value for the operation of the compressor is set in the control unit; the collecting unit comprises infrared sensors arranged on four top corners of the floor dryer, and a temperature detection module arranged in the infrared sensors is connected with the control unit; the working unit is connected with the acquisition unit, and feeds the environmental temperature value detected by the infrared sensor and the rated temperature value of the compressor to the central processing unit, and the central processing unit of the control unit judges and controls the working state of the floor dryer. According to the invention, the working time periods of the working unit and the temperature control unit are regulated by the control unit, so that the compressor is protected, the energy consumption is reduced, and the drying efficiency is improved.
Description
Technical Field
The invention relates to the technical field of intelligent control systems, in particular to a temperature control method and system of a floor dryer.
Background
The terrace is the part of the bottom room contacting with the soil layer, bears the load of the bottom room, and is required to have certain strength and rigidity, and has the performances of moisture resistance, water resistance, heat preservation and wear resistance. The stratum and the outdoor site of the building have close relations, and the relations between the terrace and the terrace, the steps and the site along the edge of the building are treated, so that the junction between the building and the site is clear, and the whole is harmonious.
The terrace is suitable for places with high requirements on sanitary conditions, such as hospital floors, food factory workshop floors, pharmaceutical factory workshop floors, experiment floors, machine room floors and the like; floors that require resistance to stamping, corrosion and wear, such as underground parks, factory stores (forklift passing areas), and the like.
In the floor manufacturing process, the construction quality of the floor can be seriously affected due to the fact that the water content is too high, poor coating adhesive force, surface bubbling, delamination and other adverse phenomena can occur on the floor, the floor dryer is required to dry at the moment, but the working state of the current floor dryer is constant, so that the compressor and the heating element in the floor dryer are always in the working state, the energy consumption of the floor dryer is high, the compressor forcedly works at a non-optimal working temperature, the compressor loss is large, and the drying efficiency is low.
Disclosure of Invention
Therefore, the invention provides a temperature control method and a temperature control system for a floor dryer, which are used for solving the problems in the background technology.
In order to achieve the above object, the embodiment of the present invention provides the following technical solutions: a temperature control system of a floor dryer, the temperature control system comprising:
the control unit is controlled by a central controller, the central controller is internally arranged in the host, and a rated temperature value for the operation of the compressor is set in the control unit;
the collecting unit comprises infrared sensors arranged on four top corners of the floor dryer, and a temperature detection module arranged in the infrared sensors is connected with the control unit;
the working unit is connected with the acquisition unit, and feeds the environmental temperature value detected by the infrared sensor and the rated temperature value of the compressor to the central processing unit, and the central processing unit of the control unit judges and controls the working state of the terrace dryer;
the temperature control unit is connected with the acquisition unit, and the central processing unit of the control unit judges and controls the working mode of the throttling component according to the environmental temperature value detected by the infrared sensor and the rated temperature value of the compressor.
The invention discloses an operation method of a temperature control system of a terrace dryer, which comprises the following specific steps:
when the floor dryer is in a working state, infrared sensors on four vertex angles of the floor dryer work and measure the environmental temperature of a sphere space radiating to the periphery by taking the floor dryer as a center in real time, and in M minutes, measuring for N times, wherein four groups of environmental temperature data are generated by each measurement;
step two, a temperature detection module built in the infrared sensor feeds back four pieces of measured ambient temperature value data to a central processing unit of the control unit, the central processing unit carries out average value calculation on the ambient temperature data measured each time, and the comparison result of the temperature average value and the rated temperature value of the compressor work determines the working state of the floor dryer;
and thirdly, the temperature control unit and the working unit work in parallel, and the comparison result of the temperature average value and the rated temperature value of the compressor work determines the working mode of the throttling component.
Further, in the first step, the measurement of the ambient temperature is performed by a temperature detection module, and the temperature detection module is configured according to the formula:
T 0 ，
Wherein epsilon is the surface emissivity of the substance,
t is the atmospheric transmittance μ For ambient temperature->
For atmospheric emissivity, +.>
At atmospheric temperature, T r Is the radiation temperature of the substance, alpha is the absorption rate of the surface of the substance, and n is the wavelength. Further, in the second step, the working states of the floor dryer are two: first kind: the compressor works and the heating body does not work, and the temperature average value at a certain point is higher than the rated temperature value of the compressor; secondly, the heating element works first, at the moment, the temperature average value at a certain point is lower than the rated temperature value of the compressor, and when the temperature average value reaches the rated temperature value of the compressor, the compressor works together with the heating element.
In the third step, when the temperature average value at a certain point is higher than the rated temperature value of the compressor, the central controller controls the working mode of the throttling component to throttle, and when the temperature average value at a certain point is lower than the rated temperature value of the compressor, the central controller controls the working mode of the throttling component to release.
Further, the working mode of the throttling component is divided into throttling and releasing, the throttling component is a ball valve, the throttling operation can enable the ball body in the throttling component to turn to the full-closing direction through the ball valve, the throttling operation can enable the ball body in the throttling component to turn to the full-opening direction through the ball valve, and the rotation of the ball body is between 0 and 360 degrees.
Further, the temperature control system is provided with a touch screen, and the rated temperature value of the compressor, the working state of the terrace dryer and the working mode of the throttling component are checked through the touch screen.
The invention also discloses a terrace dryer which comprises a host machine, an evaporator, a compressor, a condenser, a heating body, a heat regenerator and a throttling component, wherein the terrace dryer is provided with the temperature control system.
The embodiment of the invention has the following advantages:
1. according to the invention, by acquiring the environmental temperature values at different distances from the terrace dryer, whether the terrace dryer needs to heat the heating body to work in a short time or the temperature reaches to work with the compressor simultaneously is judged, so that the rapid heating is realized in a low-temperature environment, and the compressor starts to work at a proper temperature;
2. according to the invention, different numerical values are fed back to the central processing unit, the central processing unit determines how the floor dryer needs to work, the blowing is stopped when the blowing is not needed, and the heating is stopped when the heating is not needed.
Drawings
FIG. 1 is a flow chart of the working state and temperature control of the floor dryer provided by the invention;
Detailed Description
Other advantages and advantages of the present invention will become apparent to those skilled in the art from the following detailed description, which, by way of illustration, is to be read in connection with certain specific embodiments, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1:
the invention discloses a temperature control system of a terrace dryer, which comprises:
the control unit is controlled by a central controller, the central controller is internally arranged in the host, and a rated temperature value for the operation of the compressor is set in the control unit;
the collecting unit comprises infrared sensors arranged on four top corners of the floor dryer, and a temperature detection module arranged in the infrared sensors is connected with the control unit;
the working unit is connected with the acquisition unit, and feeds the environmental temperature value detected by the infrared sensor and the rated temperature value of the compressor to the central processing unit, and the central processing unit of the control unit judges and controls the working state of the terrace dryer;
the temperature control unit is connected with the acquisition unit, and the central processing unit of the control unit judges and controls the working mode of the throttling component according to the environmental temperature value detected by the infrared sensor and the rated temperature value of the compressor.
The invention discloses an operation method of a temperature control system of a terrace dryer, which comprises the following specific steps:
when the floor dryer is in a working state, infrared sensors on four vertex angles of the floor dryer work and measure the environmental temperature of a sphere space radiating to the periphery by taking the floor dryer as a center in real time, and in 1 minute, measuring for 10 times, wherein four groups of environmental temperature data are generated by each measurement;
measuring the ambient temperature is accomplished by a temperature detection module, which is configured according to the formula:
obtaining the ambient temperature T at a certain point in the sphere space 0 Wherein epsilon is the surface emissivity of the substance,
t is the atmospheric transmittance μ For ambient temperature->
For atmospheric emissivity, +.>
At atmospheric temperature, T r Is the radiation temperature of the substance, alpha is the absorption rate of the surface of the substance, and n is the wavelength.
Step two, a temperature detection module built in the infrared sensor feeds back four pieces of measured ambient temperature value data to a central processing unit of the control unit, the central processing unit carries out average value calculation on the ambient temperature data measured each time, and the comparison result of the temperature average value and the rated temperature value of the compressor work determines the working state of the floor dryer;
the floor dryer operating condition has two kinds: first kind: the compressor works and the heating body does not work, and the temperature average value at a certain point is higher than the rated temperature value of the compressor; secondly, the heating element works first, at the moment, the temperature average value at a certain point is lower than the rated temperature value of the compressor, and when the temperature average value reaches the rated temperature value of the compressor, the compressor works together with the heating element.
And thirdly, the temperature control unit and the working unit work in parallel, and the comparison result of the temperature average value and the rated temperature value of the compressor work determines the working mode of the throttling component.
And when the temperature average value at a certain point is higher than the rated temperature value of the compressor, the central controller controls the working mode of the throttling component to throttle, and when the temperature average value at a certain point is lower than the rated temperature value of the compressor, the central controller controls the working mode of the throttling component to release.
The working mode of the throttling component is divided into throttling and releasing, the throttling component is a ball valve, the throttling operation can enable the ball body in the throttling component to turn to the full-closing direction through the ball valve, the throttling operation can enable the ball body in the throttling component to turn to the full-opening direction through the ball valve, and the rotation of the ball body is between 0 and 360 degrees.
The temperature control system is provided with a touch screen, and the rated temperature value of the compressor, the working state of the terrace dryer and the working mode of the throttling component are checked through the touch screen.
The invention also discloses a terrace dryer which comprises a host machine, an evaporator, a compressor, a condenser, a heating body, a heat regenerator and a throttling component, wherein the terrace dryer is provided with the temperature control system.
Example 2:
the performance of the compressor changes along with the changes of the evaporating temperature and the condensing temperature, so that the performance test of the refrigeration compressor needs to be carried out under the working conditions specified by the national standard, and the performance of the compressor can be measured by the coefficient of performance COP of the working conditions:
in which Q o The refrigerating capacity of the compressor is represented by W, and the input power of the compressor is represented by W.
Under a certain working condition, the evaporation temperature, condensation temperature, suction temperature and supercooling degree are all known, so that the p-h pressure enthalpy diagram of the compressor under the working condition can be obtained, and the refrigerating capacity q of the compressor per unit mass can be determined 0 Measuring the mass flow G of refrigerant flowing through the compressor m After that, the refrigerating capacity of the compressor can be calculated, namely
Q o ＝G m ×q 0 Will Q o Substituting the coefficient of performance COP of the compressor
Example 3:
according to the performance test method of the positive displacement refrigerant compressor specified in GB/T5773-2004, the experimental working condition is a standard working condition, and the evaporating temperature is as follows: -15 ℃, condensation temperature: calculating the performance coefficient of the compressor in the environment of +30 ℃;
and judging the deviation of the main refrigerating capacity and the auxiliary refrigerating capacity, and if the deviation is within +/-4%, calculating the performance coefficient of the compressor by using the main refrigerating capacity.
The relative error calculation formula of the main side and the auxiliary side is as follows:
the primary side refrigeration capacity Q1 of example 1 and the control group can be used as Q o Substituted into
Calculating the coefficient of performance (COP) of the compressor by a formula;
according to
The larger the calculated refrigerating efficiency eta, the better the energy-saving performance of the compressor, the more the main side refrigerating capacity Q1 of the embodiment 1 group is larger than the main side refrigerating capacity Q1 of the comparison group, and the refrigerating efficiency eta of the embodiment 1 group is larger than the refrigerating efficiency eta of the comparison group under the same input power W of the compressor;
while the invention has been described in detail in the foregoing general description and specific examples, it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, such modifications or improvements may be made without departing from the spirit of the invention and are intended to be within the scope of the invention as claimed.
Claims (8)
1. A temperature control system of terrace dryer, its characterized in that: the temperature control system includes:
the control unit is controlled by a central controller, the central controller is arranged in the host, and a rated temperature value for the operation of the compressor is set in the control unit;
the collecting unit comprises infrared sensors arranged on four top corners of the floor dryer, and a temperature detection module arranged in the infrared sensors is connected with the control unit;
the working unit is connected with the acquisition unit, and feeds the environmental temperature value detected by the infrared sensor and the rated temperature value of the compressor to the central processing unit, and the central processing unit of the control unit judges and controls the working state of the terrace dryer;
the temperature control unit is connected with the acquisition unit, and the central processing unit of the control unit judges and controls the working mode of the throttling component according to the environmental temperature value detected by the infrared sensor and the rated temperature value of the compressor.
2. A method of operating the temperature control system of the floor dryer of claim 1, wherein: the method comprises the following specific steps:
when the floor dryer is in a working state, infrared sensors on four vertex angles of the floor dryer work and measure the environmental temperature of a sphere space radiating to the periphery by taking the floor dryer as a center in real time, and in M minutes, measuring for N times, wherein four groups of environmental temperature data are generated by each measurement;
step two, a temperature detection module built in the infrared sensor feeds back four pieces of measured ambient temperature value data to a central processing unit of the control unit, the central processing unit carries out average value calculation on the ambient temperature data measured each time, and the comparison result of the temperature average value and the rated temperature value of the compressor work determines the working state of the floor dryer;
and thirdly, the temperature control unit and the working unit work in parallel, and the comparison result of the temperature average value and the rated temperature value of the compressor work determines the working mode of the throttling component.
3. A method of operating a temperature control system for a floor dryer according to claim 2, wherein: in the first step, the measurement of the ambient temperature is completed by a temperature detection module, and the temperature detection module is used for detecting the ambient temperature according to the formula:
Wherein epsilon is the surface emissivity of the substance,
t is the atmospheric transmittance μ For ambient temperature->
For atmospheric emissivity, +.>
At atmospheric temperature, T r Is the radiation temperature of the substance, alpha is the absorption rate of the surface of the substance, and n is the wavelength.
4. A method of operating a temperature control system for a floor dryer according to claim 2, wherein: in the second step, the working states of the terrace dryer are two types: first kind: the compressor works and the heating body does not work, and the temperature average value at a certain point is higher than the rated temperature value of the compressor; secondly, the heating element works first, at the moment, the temperature average value at a certain point is lower than the rated temperature value of the compressor, and when the temperature average value reaches the rated temperature value of the compressor, the compressor works together with the heating element.
5. A method of operating a temperature control system for a floor dryer according to claim 2, wherein: in the third step, when the temperature average value at a certain point is higher than the rated temperature value of the compressor, the central controller controls the working mode of the throttling component to throttle, and when the temperature average value at a certain point is lower than the rated temperature value of the compressor, the central controller controls the working mode of the throttling component to release.
6. A method of operating a temperature control system for a floor dryer according to claim 5, wherein: the working mode of the throttling component is divided into throttling and releasing, the throttling component is a ball valve, the throttling operation can enable the ball body in the throttling component to turn to the full-closing direction through the ball valve, the throttling operation can enable the ball body in the throttling component to turn to the full-opening direction through the ball valve, and the rotation of the ball body is between 0 and 360 degrees.
7. A method of operating a temperature control system for a floor dryer according to any one of claims 2-6, wherein: the temperature control system is provided with a touch screen, and the rated temperature value of the compressor, the working state of the terrace dryer and the working mode of the throttling component are checked through the touch screen.
8. The utility model provides a terrace drying-machine, includes host computer, evaporimeter, compressor, condenser, heat-generating body, regenerator and throttling element, its characterized in that: the floor dryer is provided with the temperature control system of claim 1.
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