How to look at the heat meter, how to look normal with the heating heat meter

The heat meter runs off the meter, and the flow rate represents how many cubic meters of water is used per hour.

The heat meter will have numbers for accumulated heat, cumulative cooling, and cumulative flow, which represent the kilowatt-hours of heat used.

The cooling capacity and the amount of water flowing, while the temperature at the inlet and outlet represents the water supply temperature and the return water temperature, and the temperature difference represents the water supply and return water generation. The accumulated time represents the time it takes for the heat meter to run off the meter, and the flow rate represents how many cubic meters of water are used per hour.

How to determine the rated flow rate of a heat meter!

At present, many design departments and user departments have a misunderstanding in the selection of heat meters, that is, according to the nominal caliber of the heat meter to select the heat meter, and the correct way is to choose according to the rated flow rate of the heat meter. Because the heating system has its own characteristics, it is different from the tap water system, the main difference is that although the pipe diameter of the heating system is very large, but in order to improve the heating effect, the flow of hot water in the pipeline is very small, such as a building of about 150m2, in order to reach the room temperature of 18 -20, the pipe diameter of 20 or 25 is generally used, but the flow rate should be controlled in the hour (assuming that the temperature difference between the inlet and return water is 20), if the heat meter is selected according to the caliber, the heat meter of 20 or 25 will be selected, And because the current domestic heat meter flow meter is the use of ordinary hot water meter movement, so its measurement characteristics are also in accordance with the specification of the water meter, that is to say, the current domestic 20 or 25 hot water meter rated flow is m3 hours and m3 hours respectively, which means that the actual flow value is only 16% or 11% of the flow rate when the installed heat meter can be accurately measured, we all know that the disadvantage of ordinary water meter is that when the actual flow is as small as only half of the rated flow rate, the measurement accuracy is very poor, Not to mention 16% or 11%!

Therefore, no matter how the caliber of the imported household heat meter changes, the rated flow rate is only m3 hours and m3 hours, which is very reasonable.

So, how to calculate the flow rate in the heating system according to the area of the house, about this problem, there is a detailed introduction in the book "HVAC, Air Conditioning Design Manual", but such an accurate calculation needs to introduce multiple parameters, such as the heat dissipation efficiency of the radiator, the insulation of the wall, etc. Usually the HVAC engineer has a simple calculation formula, to introduce to everyone:

qn=in-t-back).

Where, QN - the actual flow of heating in the house (unit: 3 hours).

a— The area of the house (unit: m2).

T inlet - the temperature of the inlet water of the heating (unit: ).

t-back — the temperature of the return water of the heating (unit: ).

This formula is derived by simplifying some of the complex parameters cited in the HVAC Design Manual. For example, the formula assumes that 80 kcal2 of heat is usually needed to maintain a room temperature of 16 18. Taking a 100-square-meter house as an example, the inlet and return water temperatures of the general heating system are controlled at about 85 and 65 respectively

qn=m3 hours.

Summary. There is generally a button on the heat meter, and the content of the heat meter display screen will change, which is displayed in a loop, mainly showing the accumulated heat, flow, inlet temperature, return temperature, temperature difference, time, date, factory number, etc. The heat meter adopts an ultrasonic meter, which requires a flow sensor, a temperature sensor, and a calculator to be integrated or separated.

The ultrasonic heat meter is composed of flow sensor, PT1000 platinum resistance paired temperature sensor, integrator, etc., according to the principle of ultrasonic time difference method, through the collection and conversion of water supply and return temperature, flow data, through the accumulation of integrator, the accumulation of heat used, the measurement of heating heat consumption is realized.

1.Looking at the temperature of the water inlet, it can generally reach 45 degrees Celsius to ensure that the house is warm;

2.Look at the temperature of the return water and calculate the temperature difference, generally 8-15 degrees Celsius;

3.Look at the traffic, whether there is traffic walking;

4.The above three points can ensure that the house is warm. If there is one thing that doesn't work, it will affect the temperature.

How to look normal on the heating heat meter.

There is generally a button on the heat meter, and the content of the heat meter display screen will change in thickness, which is displayed in a loop, mainly showing the cumulative heat, flow, inlet temperature, return temperature, temperature difference, time, date, factory number, etc. The heat meter adopts an ultrasonic meter, which requires a flow sensor, a temperature sensor, and a calculator to be integrated or separated. The ultrasonic heat meter is composed of a flow sensor, a PT1000 platinum resistance paired temperature sensor, an integrator, etc., according to the principle of ultrasonic time difference method, through the collection and conversion of water temperature and flow data, through the accumulation of the integrator, the accumulation of heat used by Xiaobi is realized, and the measurement of heating heat consumption is realized.

1.Looking at the temperature of the water inlet, it can generally reach 45 degrees Celsius to ensure that the house is warm; 2.Look at the temperature of the return water and calculate the temperature difference, generally 8-15 degrees Celsius; 3.

Look at the traffic, whether there is traffic walking; 4.The above three points can ensure that the house is warm. If there is one thing that doesn't work, it will affect the temperature.

How to look at the heat meter is normal to ask the temperature.

There is generally a button on the household heat search meter, press one button to press this button, and the heat meter display. The content displayed on the display changes, and it is generally displayed in a loop, rest assured, and it is not broken. The main displays are cumulative heat, flow, inlet temperature, temperature of the backwater, temperature difference, time, date, factory number, caliber, etc., you can try it.

Hope it helps.

Can you show me how many pairs there are?

18 2 Normal.

I want to turn it up, how to adjust it, there should be a button on it to adjust.

To see whether the heating is normal through the heat meter, as long as you press the button on the heating heat meter, you can query the heating: inlet temperature, return water temperature, cumulative flow, temperature difference, date, cumulative time, caliber, cumulative heat, cumulative cooling capacity, etc.

Each time a button is pressed, an item will be displayed on the display of the thermal energy meter, and in general, it is a cycle display, and each time the button is pressed, an item will appear on the screen. Among them, the temperature difference refers to the temperature difference caused in the process of water supply and water return, the cumulative time refers to the time when the heat meter runs the meter, and the cumulative flow refers to the amount of water consumed for heating per hour.

If you want to calculate the heating cost of a family, then you can control the temperature of the water heater on a "heat accumulation" interface, and then multiply its total heat by the total heat of the heating system to get the heating fee you have to pay.

Normal Thermal Energy Meter Values:

The heating heat meter display means normal, this heat meter makes the state shed very simple, there is this number displayed on it, you can see it at a glance, and the test is relatively accurate.

The heating heat meter is fine, and the values displayed are normal. Generally, heat meters are charged by counting the flow rate, but the heat must be reached. to 17 degrees or more. The larger the flow, the more charged, the specific charge base, to consult the heating department.

Heat metering can be calculated by the heat meter, the heat meter is essentially a hot water heat accumulation meter, and the hourly heat supply of the hot water heating system can be calculated by the following formula, namely:

q=m(i2-i1)=ρv(i2-i1)

where Q - which is the first envy of heat, w;

i2,i1—enthalpy of water supply and return, j kg;

m—mass flow rate of water, kg s;

Density of water, kg m;

v—volumetric flow rate of water, m s.

Generally, every household will have a heating heat meter installed, so what is this heating heat meter used for? How do we read the heating heat meter? Next, please follow the decoration security network for me to take a look.

What is a heating heat meter.

What is a heating heat meter.

The heating heat meter is a heat metering instrument installed on the heating pipe of each household, which calculates the hot water entering the user's home, and the heat released through the radiator, and there is no various losses and apportionment of heat before entering the user, which is a household and a meter in the real sense. The heat meter must be verified or calibrated by the measurement department for the first time before installation, and can only be installed and used after qualification, and is protected by law.

Features of the heating heat meter:

At this stage, the state stipulates the use of heat meters, which seems to be cumbersome in the installation process, but it is the same as the water meter cavity, electricity meter, and gas meter, and is collectively referred to as the "four civil meters", which is the real measurement of the actual consumption of heat energy by each household, and the heat meter does not exist in the heat loss of the total meter and the pipeline, and it is a measuring instrument for the first settlement stipulated by the state. It has the advantages of high precision, scientific and reliable principle, intuitive display, and easy supervision. Users can rest assured that they can estimate the cost of heating by observing the displayed value, which is simple and clear.

Benefits of Heating Heat Meters:

The use of heat meters to measure heat is for the purpose of energy saving, and the biggest difference from the previous area-based charges is that residents can control the actual heat energy they get. When charging by area, the heating fee is multiplied by the unit price by the heating area of the user, and each heating period is a certain value and cannot be changed. The biggest advantage of using a heat meter to measure heat is that users can control the "heat entering the house" by themselves.

In the past, when the weather conditions were better and the room temperature was too high, the way of opening the window and opening the door to release heat or closing part of the ball valve to reduce the heat supply, but for the user, the cost was the same. Instead, you can control the "heat of the house" by using the rotten words of the heating heat meter, which is equivalent to saving heating costs and playing a role in energy saving. How to look at the heating heat meter.

How to look at the heating heat meter.

The heat meter in the resident's home will have the digits of accumulated heat, cumulative cooling and cumulative flow, which represent the kilowatt-hours, cooling capacity and water flow of the resident's home, while the temperature at the inlet and outlet represents the water supply temperature and the return water temperature, the temperature difference represents the temperature difference between the water supply and the return water, the accumulated time represents the time when the heat meter runs the meter in the resident's home, and the flow rate represents how many cubic meters of water are used per hour. You can find the corresponding value according to the manual, so that you can know the heating situation of your home in real time and understand the heating consumption of your home. Nowadays, the country is vigorously promoting, and finally fully realize the sub-household metering, in terms of heat measurement, the heat meter is a measuring instrument prescribed by the national law, which provides convenience for the heating metering and calculation of the public.

Do the math how much it will cost you to renovate your home

Many people are very worried about energy consumption when using heating, if the energy consumption is too large, it will increase economic pressure, so many families will install heating heat meters at home, so how to look at heating heat meters? Let's learn together.

How to look at the heating heat meter.

1. The heating heat meter is generally equipped with a button, as long as this button is pressed, we can query the data of the relevant aspects of heating, such as: inlet temperature, return temperature, cumulative flow, temperature difference, date, cumulative time, caliber, cumulative heat, cumulative cooling and so on.

2. Under normal circumstances, the heating heat meter is displayed in a loop, and every time you press the button, one item will be displayed on the display screen of the heating heat meter. The temperature difference refers to the temperature difference between the water supply fiber and the return of water, while the cumulative time refers to the time when the heating heat meter runs the meter, and the cumulative flow rate refers to how much water is used by the heating per hour.

3. If you want to calculate the heating fee that needs to be paid at home, then you should press the button of the heating heat meter to the display page of the accumulated heat, and then add the basic heat fee to the cumulative heat displayed by the heating heat meter, and then multiply it by the heating unit price to get the heating fee you need to pay.

4. If you want to check the inlet water temperature or return water temperature of your home, then you can directly press the button of the heating meter to T1 or T2, and you can check it. When looking at the heating heat meter, it is necessary to master the correct way to look at the meter to avoid mistakes.

5. It is recommended that you can check the various values of the heating heat meter in detail according to the user manual of the heating heat meter, so that you can clearly understand the heating situation of your own heating and clearly estimate the heating costs you need to pay.

The above is a detailed introduction to how to look at the heating heat meter, I hope it can help friends in need. When looking at the sales table of heating heat meters, it is recommended that you must master the correct way to look at the meter to avoid mistakes and understand your heating consumption.

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