With the improvement of living standards and the strengthening of environmental awareness, people have now reduced the use of traditional energy such as coal, and gradually transformed into clean energy such as natural gas and gas, and even electricity, so that the gas meter needs to be used.The gas meter can control the distribution and record of the gas flowing direction and record the amount of gas we use, and the home life is a very convenient instrument.How to choose the gas meter?What do you think of the gas meter?Lets take a look today.
Gas meter selection
1. When selecting the gas meter, the instrument performance, fluid characteristics, installation requirements, environmental conditions, and price factors should be selected.
2. The measurement accuracy of the gas meter is selected from ± 1%± 2%.The normal gas consumption of the user is selected in the range of 20%to 85%of the range.
3. For the actual flow range of the measured gas, reasonably select the corresponding gas meter model and specifications.
4. The gas load under normal conditions of the gas equipment is the main basis of the gas meter selection.
5. It is recommended that customers in the catering industry (restaurants, cafeterias, schools) generally preferentially choose film -type gas meters and gas waist wheel gas meters.
6. Customers using hot water stoves, boilers, etc. generally use smart gas waist wheel gas gauge, and they should bring temperature and supplementary compensation device.
7. Use the turbine turnome meter to use industrial furnace kiln, large boiler, chemical gas equipment and other large customers (flow> 650m3/h) to install the gas meter separately.
How to look at the gas meter
Household membrane -type gas meter: It is the kind of word wheel, generally the first five (black) and the last three (red), the whole value of black, and red is the value behind the decimal point.This is easy to read, and directly minus the value from the previous value, get the result of the desired.Of course, the amount of gas is recorded here, not the payment amount.
Smart gas meter: There are many smart gas meters, such as wireless remote gas meters, Internet of Things gas meter, IC card gas meter, etc.The method of reading the value is similar. If there is a liquid crystal display, the number of direct read is sufficient. If it is a word wheel, it is consistent with the reading method of the membrane gas meter.
Old -style pointer -type gas meter: This gas meter looks more complicated, and there will be a sign of 1,10,100 and other values ??on the dial. This means what is the value of this beginning.For example, the value on the 10 bits is 2, that is, 20, 100 are 3, 300 and so on.There is no need to record the value of the decimal point. Read all values ??in this way and follow the values ??when the meter was copied last month.
Gas meter installation
The gas meter can only be placed horizontally on the bracket and must not be tilted. The vertical deviation of the table is 1cm.The entrance and export pipes of the gas meter are used for steel pipes or lead pipes. The threaded connection should be tightly connected. After the lead tube is bent, it becomes an arc shape.The horizontal pipe slopes in front of the surface are towards the riser, and the horizontal pipe slopes of the surface of the surface.The live joints of the low -scale stove -level tube are not set in the stove board.When the gas meter inlet and export are connected to the surface with a single tube connector, the connection direction should be paid to prevent wrong installation.Single tube connecting side -end penta, the trachea is connected at the top.The rubber sealing ring must be installed at the lower end of the lower end.When the gas tube of the gas meter is on both sides of the table, the connection direction should be paid attention to.Under normal circumstances, people face the air intake pipe on the left side of the table disk, and the right side of the air pipe.When installing, it should be installed according to the product manual of the gas meter, so as not to install it wrong.After the gas meter is installed, strict tests should be performed.The test medium is compressed with compressed air, the pressure is 300mm high water column, and the 5min internal pressure drop is not more than 20mm water column.

Related tags： Machinery