CN115509276B - Calculation method and monitoring device for heating or refrigerating power of equipment based on space meshing - Google Patents
Calculation method and monitoring device for heating or refrigerating power of equipment based on space meshing Download PDFInfo
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 40
- 238000004364 calculation method Methods 0.000 title claims abstract description 25
- 238000012806 monitoring device Methods 0.000 title claims abstract description 13
- 238000001816 cooling Methods 0.000 claims abstract description 19
- 238000012544 monitoring process Methods 0.000 claims abstract description 17
- 238000005259 measurement Methods 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 12
- 238000013500 data storage Methods 0.000 claims description 6
- 238000005057 refrigeration Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 8
- 238000006243 chemical reaction Methods 0.000 description 2
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
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Abstract
The invention discloses a calculation method and a monitoring device for heating or refrigerating power of equipment based on space meshing, wherein the calculation method comprises the following steps: acquiring a range of a monitoring area through manual measurement, and manually dividing the range into a plurality of unit space grid areas; at least one temperature acquisition unit is configured corresponding to each unit space grid area respectively and is used for acquiring temperature changes in each unit space grid area; each temperature acquisition unit acquires a temperature difference value in a first period every other manually set first period; and calculating the heat absorbed or dissipated by each unit space grid region according to the product of the obtained temperature difference and the specific heat capacity, the air density and the volume of the unit space grid region; calculating the heating or cooling power of the equipment through the sum of the heat absorbed or dissipated by each unit space grid area; the invention provides a calculation method and a monitoring device, which solve the problem of poor energy-saving effect caused by inaccurate monitoring data and calculation results in the prior art.
Description
Technical Field
The invention relates to the field of cabinet manufacturing, in particular to a method for calculating heating or refrigerating power of equipment based on space meshing and a monitoring device.
Background
Nowadays, the idea of "energy saving" is well-known, and is reflected from various aspects of life, but there are some aspects that are insufficient, because the power consumption or the usage state cannot be monitored or calculated more accurately, and thus, energy consumption is caused, for example: (1) In a large market, a central air conditioner is used for refrigerating, and because the market is large in area and large in area, and the refrigerating power of the central air conditioner is constant, various energy waste conditions occur under different conditions, such as few customers in the morning or at night and few devices for generating heat in the market, customers or staff feel that the environmental temperature is too low at the same temperature, and the market is too hot at the same temperature in areas with noon, holidays, more customers or more heat generation (catering areas), so that the temperature of the market is controlled, so that the areas with few customers or less heat generation are supercooled, discomfort is generated, the central air conditioner of the market is difficult to monitor or detect the temperature change of the corresponding area, and refrigerating or heating can not be performed with the maximum power all the time, so that the energy is not saved, and the power consumption is high; (2) The machine room, for example, a 10 square meter machine room, is normally provided with a 1.5-piece air conditioner for cooling or heating to maintain the ambient temperature of the machine room, so as to radiate heat of heating devices (such as a computer, a control cabinet and the like) in the machine room; however, in the space with the same square number, the effects brought by different numbers of internal heating devices are different, the heat emitted by the installation of 3 heating devices in 10 square meters is completely different from the heat emitted by the installation of 10 heating devices, and the current method only adjusts the air conditioner to reduce the temperature by the maximum power, and the air conditioner cannot be adjusted after calculation, so that the power consumption is greatly increased and the energy-saving effect is not achieved;
In summary, a method capable of accurately calculating power is urgently needed as a basis for configuring refrigerating capacity or heating capacity of refrigerating or heating equipment to achieve reduction of power consumption.
Disclosure of Invention
The invention aims to overcome the defects or problems in the background art, and provides a calculation method and a monitoring device for heating or refrigerating power of equipment based on space meshing, which solve the problem of poor energy-saving effect caused by inaccurate monitoring data and calculation results in the prior art;
in order to achieve the above purpose, the present invention adopts the following technical scheme:
A method for calculating heating or cooling power of a device based on spatial meshing, the method comprising:
acquiring a range of a monitoring area through manual measurement, and manually dividing the range into a plurality of unit space grid areas;
At least one temperature acquisition unit is configured corresponding to each unit space grid area respectively and is used for acquiring temperature changes in each unit space grid area;
each temperature acquisition unit acquires, stores and compares the temperature value in a first period set by people every other person to acquire a temperature difference value in the first period; and calculating the heat absorbed or dissipated by each unit space grid region according to the product of the obtained temperature difference and the specific heat capacity, the air density and the volume of the unit space grid region;
the heating or cooling power of the device is calculated by the sum of the heat absorbed or dissipated by each of the cell space grid regions, namely:
Wherein,
P is power, C Air-conditioner is air specific heat capacity, ρ Air-conditioner is air density, V i is volume of each cell space grid region, Δt is first period, Δti is temperature difference.
Further, in the first period set by people, each temperature acquisition unit acquires the difference value between the temperature value of the last time point and the temperature value of the initial time point as a temperature difference value, namely:
Δt=tset-tset
Wherein, tset is the temperature value that the time point gathered at the end of the first period, tset is the temperature value that the initial time point gathered at the first period.
Further, the calculation formula of the heat absorbed or dissipated by any one of the cellular space grid areas is as follows:
Q＝C Air-conditioner ·ρ Air-conditioner ·V Air-conditioner ·Δt
Wherein: q is the heat absorbed or dissipated, C Air-conditioner is the specific heat capacity of air, ρ Air-conditioner is the air density, V Air-conditioner is the volume Δt of each cell space grid region is the temperature difference.
Further, the calculation formula of the total absorbed or dissipated heat in the monitoring area is as follows:
Where Q Total (S) is the total absorbed or dissipated heat over the monitored area.
Further, the power of heating or cooling during the first period by monitoring the total absorbed or dissipated heat of the area range is calculated by:
Wherein P is the heating or cooling power of the device.
The monitoring device based on the heating or refrigerating power of the space gridding equipment comprises a plurality of temperature acquisition units, a data acquisition module, a data storage module, a data processing module and a power data output module, wherein the data processing module acquires power data through the calculation method; the temperature acquisition units are used for acquiring the temperature in the corresponding unit space grid area, the temperature is sent to the data storage module for storage through the data acquisition module, the data processing module is used for calculating the absorbed or dissipated heat, and the absorbed or dissipated heat is converted into corresponding power and then is output to an execution device of the equipment through the power data output module.
From the above description of the present invention, compared with the prior art, the present invention has the following advantages:
The invention provides a calculation method and a monitoring device for heating or refrigerating power of equipment based on space meshing, which solve the problem of poor energy-saving effect caused by inaccurate monitoring data and calculation results in the prior art; according to the calculation method, space gridding division is carried out on a monitoring area to form a plurality of unit small spaces, a temperature acquisition unit is arranged in each unit small space to obtain the temperature of each unit small space more accurately, a temperature difference value is obtained in a first period set manually, if the temperature difference value is positive, the temperature is raised (absorbed heat), otherwise, the temperature is lowered (lost heat), the sum of the heat of each unit small space is obtained in a summation mode, the success rate is finally converted, a cooling or heating instruction is executed for equipment, and the equipment can be driven to operate or work with corresponding power according to the obtained power value without operating with maximum power; illustrating: for example, a kilovolt-ampere transformer arranged in a community is arranged in a room, a cabinet or a machine room, and the heat generated by the transformer during operation is different due to different power utilization states of residents, such as residents at home at night, the power consumption is high, the load rate of the transformer is up to more than 80-95%, and the generated heat is high; in the daytime of working days, residents go out to work, at the moment, the domestic electric quantity is small, the load rate of the transformer is low and only reaches about 20%, the generated heat is small, the existing mode cannot calculate and can not accurately monitor the heating situation, generally, the temperature of the transformer in a cabinet or an indoor is reduced or raised by the maximum constant power, the corresponding power can not be adjusted according to the actual heating or cooling capacity, the excessive or excessive configuration is caused, the energy-saving effect and effect can not be achieved, in particular, some precise instruments have high requirements on the temperature, the transformer is not suitable for working in an overheated or supercooled space, the existing mode can not meet the requirement, the method can accurately acquire the heating value, the monitoring data is more accurate, the calculated cooling capacity or the heating value can not be converted into the corresponding power, the corresponding power is sent to equipment for heating or cooling, the service life of the equipment is also greatly prolonged while the energy is saved, and the operation with the maximum power is not needed.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments below are briefly introduced, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of a monitoring device according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are preferred embodiments of the invention and should not be taken as excluding other embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without creative efforts, are within the protection scope of the present invention.
In the claims, specification and drawings hereof, unless explicitly defined otherwise, the terms "first," "second," or "third," etc. are used for distinguishing between different objects and not for describing a particular sequential order.
In the claims, specification and drawings of the present invention, unless explicitly defined otherwise, references to orientation or positional relationship such as the terms "center", "lateral", "longitudinal", "horizontal", "vertical", "top", "bottom", "inner", "outer", "upper", "lower", "front", "rear", "left", "right", "clockwise", "counterclockwise", etc. are based on the orientation and positional relationship shown in the drawings and are merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or element referred to must have a particular orientation or be constructed and operated in a particular orientation, nor should it be construed as limiting the particular scope of the invention.
In the claims, specification and drawings of the present invention, unless explicitly defined otherwise, the term "fixedly connected" or "fixedly connected" should be construed broadly, i.e. any connection between them without a displacement relationship or a relative rotation relationship, that is to say includes non-detachably fixedly connected, integrally connected and fixedly connected by other means or elements.
In the claims, specification and drawings of the present invention, the terms "comprising," having, "and variations thereof as used herein, are intended to be" including but not limited to.
Referring to fig. 1, the monitoring device based on space gridding equipment heating or refrigerating power comprises a plurality of temperature acquisition units 1, a data acquisition module 2, a data storage module 3, a data processing module 4 and a power data output module 5;
The temperature acquisition units 1 are used for acquiring the temperature of the space grid area of the unit and transmitting the temperature to the data storage module 3 for storage through the data acquisition module 2;
The data processing module 4 processes and calculates the acquired temperature value and converts the acquired temperature value into power data;
The power data output module 5 outputs power data to the execution device 6 of the equipment, the invention takes the air conditioner as an example of the execution device 6, and the air conditioner is driven to refrigerate or heat with corresponding power according to the calculated power;
It should be noted that, the data processing module 4 outputs power data through a calculation method for heating or cooling power of the device based on spatial meshing, and the specific calculation method includes:
(1) Acquiring a range of a monitoring area A through manual measurement, and manually dividing the range into a plurality of unit space grid areas A1;
(2) At least one temperature acquisition unit 1 (exemplified by a temperature sensor in the present invention) is respectively configured corresponding to each of the unit space grid areas A1 for acquiring a temperature change in each of the unit space grid areas A1; the method comprises the following steps:
Each temperature acquisition unit 1 acquires, stores and compares temperature values in a first period delta T set by people every other, and acquires a temperature difference value in the first period delta T; namely: in the first period Δt set by people, each temperature acquisition unit 1 acquires a difference value between the temperature value at the end time and the temperature value at the initial time as a temperature difference value, that is:
Δt=tset-tset
Wherein, tsend is the temperature value that the first period DeltaT end point gathered, tstart is the temperature value that the first period DeltaT initial point gathered.
Each temperature acquisition unit 1 obtains delta t1, delta t2, delta t3, delta t4 … … and delta ti;
Note that, if Δt is a positive value, the reaction temperature rises, i.e., the temperature rises, and if Δt1 is a negative value, the reaction temperature falls, i.e., the temperature drops;
(3) Then, the heat absorbed or dissipated by each unit space grid area A1 is calculated, that is, the heat absorbed or dissipated by each unit space grid area A1 is calculated by the product of the obtained temperature difference Δt, the specific heat capacity C Air-conditioner of air, the air density ρ Air-conditioner and the volume V Air-conditioner of the unit space grid area, and the calculation formula is as follows:
Q＝C Air-conditioner ·ρ Air-conditioner ·V Air-conditioner ·Δt
Wherein: q is the heat absorbed or dissipated, C Air-conditioner is the air specific heat capacity, C Air-conditioner is the air density, V Air-conditioner is the volume Δt of each unit space grid region A1 is the temperature difference.
In this way, the heat quantity Q1, Q2, Q3 … … Qn of each unit grid area can be obtained;
It is then deduced that during the first period Δt of time set by the person, the quantity of heat absorbed (dissipated) by the air in the monitored area a is Q Total (S) ,
Q Total (S) ＝Q1+Q2+Q3+…+Qn
I.e. ：Q Total (S) ＝C Air-conditioner ·ρ Air-conditioner ·V1·Δt1+C Air-conditioner ·ρ Air-conditioner ·V2·Δt2+……C Air-conditioner ·ρ Air-conditioner ·Vn·Δtn
Therefore:
Note that V1, V2, V3...vn is the volume of each unit space grid region A1, Δt2, Δ t3..+ -. Δtn is the temperature difference value of each unit space grid region A1 in Δt time period;
(4) In the artificial setting of the first period DeltaT, the heat generating (refrigerating) power of the equipment is calculated by the total absorbed or dissipated heat calculating equipment passing through the range of the monitoring area A, wherein the heat generating or refrigerating power of the equipment in the first period DeltaT is calculated by the following formula:
wherein P is the heating or refrigerating power of the equipment;
By combining the formula of the total heat Q Total (S) of the monitoring area, the total heat absorbed or dissipated by each unit space grid area A1 is calculated, namely:
Wherein,
P is power, C Air-conditioner is air specific heat capacity, ρ Air-conditioner is air density, V i is volume of each unit space grid region A1, Δt is first period Δt, Δti is temperature difference.
The temperature value is obtained through the temperature acquisition unit 1, and the heating power or the refrigerating power can be obtained through combining the formula by combining the first period DeltaT (the first period DeltaT is set according to actual requirements, such as 5 seconds, 5 minutes and the like) which is set by people, and then the heating power or the refrigerating power is sent to the executive device 6 (air conditioner) through the power data output module 5, and the air conditioner can allocate corresponding power (wattage) according to the monitored obtained power to cool or heat, so that continuous operation with the maximum power is avoided, and the waste of energy is caused.
The invention provides a calculation method and a monitoring device for heating or refrigerating power of equipment based on space meshing, which solve the problem of poor energy-saving effect caused by inaccurate monitoring data and calculation results in the prior art; according to the calculation method, space meshing division is carried out on a monitoring area to form a plurality of unit small spaces, a temperature acquisition unit is arranged in each unit small space to obtain the temperature of each unit small space more accurately, a temperature difference value is obtained in a first period set manually, if the temperature difference value is positive, the temperature is raised (absorbed heat), otherwise, the temperature is lowered (lost heat), the sum of the heat of each unit small space is obtained in a summation mode, the success rate is finally converted, a cooling or heating instruction is executed for equipment, and the equipment can be driven to operate or work with corresponding power according to the obtained power value without operating with maximum power.
The foregoing description of the embodiments and description is presented to illustrate the scope of the invention, but is not to be construed as limiting the scope of the invention.
Claims (6)
1. The calculation method for the heating or refrigerating power of the equipment based on the space meshing is characterized by comprising the following steps:
acquiring a range of a monitoring area through manual measurement, and manually dividing the range into a plurality of unit space grid areas;
At least one temperature acquisition unit is configured corresponding to each unit space grid area respectively and is used for acquiring temperature changes in each unit space grid area;
each temperature acquisition unit acquires, stores and compares the temperature value in a first period set by people every other person to acquire a temperature difference value in the first period; and calculating the heat absorbed or dissipated by each unit space grid region according to the product of the obtained temperature difference and the specific heat capacity, the air density and the volume of the unit space grid region;
the heating or cooling power of the device is calculated by the sum of the heat absorbed or dissipated by each of the cell space grid regions, namely:
Wherein,
P is power, C Air-conditioner is air specific heat capacity, ρ Air-conditioner is air density, V i is volume of each cell space grid region, Δt is first period, Δti is temperature difference.
2. The method for calculating the heating or cooling power of the equipment based on the space meshing as set forth in claim 1, wherein: in a first period set manually, each temperature acquisition unit acquires a difference value between a temperature value at the end time and a temperature value at the initial time as a temperature difference value, namely:
Δt=tset-tset
Wherein, tset is the temperature value that the time point gathered at the end of the first period, tset is the temperature value that the initial time point gathered at the first period.
3. The method for calculating the heating or cooling power of the equipment based on the space meshing as claimed in claim 2, wherein: the calculation formula of the heat absorbed or dissipated by any cell space grid area is as follows:
Wherein: q is the heat absorbed or dissipated, C Air-conditioner is the specific heat capacity of air, ρ Air-conditioner is the air density, V Air-conditioner is the volume Δt of each cell space grid region is the temperature difference.
4. A method of calculating heat or cooling power of a device based on spatial meshing as set forth in claim 3, wherein: the calculation formula of the total absorbed or dissipated heat in the monitoring area is as follows:
wherein Qalways is the total absorbed or dissipated heat in the area of the monitored area.
5. The method for calculating the heating or cooling power of the equipment based on the space meshing as set forth in claim 4, wherein: the power of heating or cooling during a first period by monitoring the total absorbed or dissipated heat of the area range is calculated by:
Wherein P is the heating or cooling power of the device.
6. Monitoring device based on space gridding equipment generates heat or refrigeration power, its characterized in that: the monitoring device comprises a plurality of temperature acquisition units, a data acquisition module, a data storage module, a data processing module and a power data output module, wherein the data processing module acquires power data through the calculation method as set forth in any one of claims 1 to 5; the temperature acquisition units are used for acquiring the temperature in the corresponding unit space grid area, the temperature is sent to the data storage module for storage through the data acquisition module, the data processing module is used for calculating the absorbed or dissipated heat, and the absorbed or dissipated heat is converted into corresponding power and then is output to an execution device of the equipment through the power data output module.
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| KR102368921B1 (en) * | 2020-10-26 | 2022-03-03 | 성균관대학교산학협력단 | Method for predicting a vertical air temperature distribution in large space structure and mehtod for calculating heating load and cooling load in the large space sutructure using the said predicted vertical air temperature distribution |
| CN112413840A (en) * | 2020-11-02 | 2021-02-26 | 珠海格力电器股份有限公司 | Air purification device, control method and device thereof, and storage medium |
| CN113175718A (en) * | 2021-05-06 | 2021-07-27 | 史金波 | Multi-branch air quantity distribution method of environment control system and environment control system |
| CN113339947A (en) * | 2021-05-21 | 2021-09-03 | 广东Tcl智能暖通设备有限公司 | Control method and device of air conditioner, air conditioner and storage medium |
| CN114517968A (en) * | 2022-04-02 | 2022-05-20 | 珠海市金品创业共享平台科技有限公司 | Air conditioner, air conditioner refrigeration control method and device and related equipment |
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