IC card cold water meter consists of remote water meter, controller and solenoid valve. The main control parameters of water meter selection are flow, normal flow, overload flow, minimum flow, boundary flow, nominal pressure, maximum allowable working pressure, pressure loss, etc.
Main classification
According to the different combination of controller and solenoid valve, it can be divided into integrated IC card cold water meter and split IC card cold water meter.
According to the different structure of wing wheel, it can be divided into spiral wing IC card cold water meter and rotor IC card cold water meter.
According to the different soaking methods of counting parts, it can be divided into dry IC card cold water meter and wet IC card cold water meter.
Selection point
1), the working environment of the water meter, such as water temperature, working pressure, working time, measuring range and water quality, should be taken into account in the selection of the water meter, and then the caliber of the water meter should be determined according to the designed flow through the water meter, so that the pressure loss of the water meter is close to or not more than the specified value. In general, when the nominal diameter is not greater than DN50, the rotary-wing water meter should be adopted; When the nominal diameter is greater than DN50, spiral wing water meter should be adopted; When the flow of water meter changes greatly, composite water meter should be adopted. Wet water meter should be the first choice for interior design.
2) When water is used evenly, the nominal diameter of the water meter shall be determined according to the design second flow rate that does not exceed the common flow rate of the water meter. When there is fire-fighting flow, it is necessary to check the flow to ensure that the total flow does not exceed the maximum flow limit of the water meter.
3), the new residential household water meter, its nominal diameter can generally use 15mm, but if the house is equipped with a self-closing toilet flush valve, in order to ensure the necessary flushing strength, the nominal diameter of the water meter should not be less than 20 mm ..
Construction and installation
1), and the water meter shall be installed in a place convenient for maintenance and reading, free from exposure, freezing, pollution and mechanical damage.
2) IC card water meter consists of remote water meter, controller and solenoid valve. According to the different combination modes of controller and solenoid valve, IC card water meter has two installation modes: one is to seal the controller and solenoid valve in a control box and install them directly on the pipeline with water meter; The other is to arrange the controller and solenoid valve separately. The solenoid valve is installed in the pipeline behind the water meter, and the controller is installed in a suitable position according to the requirements of convenient use or indoor decoration, and the water meter and the solenoid valve are connected by cables to achieve the purpose of control.
3), IC card water meter is only suitable for the measurement of tap water, not for waste water and industrial sewage.
4) Pay attention to the direction of water flow when choosing the model of IC card water meter, so as not to cause inconvenience in installation.
5) The 5)IC card water meter shall be installed horizontally as far as possible, with the dial facing upwards and the arrow direction consistent with the water flow direction.
executive standard
1), product standard
IC card cold water table CJ/T 133-20 12
2), engineering standards
Code for Acceptance of Construction Quality of Building Water Supply, Drainage and Heating Engineering GB50242-2002
Code for design of building water supply and drainage? GB？ 500 15-2003
Present situation development
With the rapid development of microelectronics technology and the promotion of relevant national policies, the intelligentization of civil measuring instruments will be an inevitable development direction. This is not only a trend in China, but also a worldwide trend. In the past ten years, single intelligent IC card instrument will be the mainstream of development. Theoretically speaking, networked intelligent instrument system should be a better measurement management mode and the ultimate development direction. However, at present, due to the immature conditions for establishing networked intelligent instrument systems and the lack of related systems, the advantages of promoting the establishment of networked intelligent instrument systems in a single department on a large scale are not obvious. In addition, it is not economical to build an information network just to extract water information.
The ideal mode of establishing a network-based intelligent instrument information system should be that the public network department establishes a socialized network system, and the specific department that wants to use this network only needs to apply to it and hook up the intelligent metering terminal of the industry. At the same time, the network intelligent instrument management system is combined with the personal financial network system. Such a network system should be a good and efficient network system.
Obviously, the whole society is trying to promote networking, and in the foreseeable time, this network system connecting thousands of households will gradually take shape. Therefore, since this kind of work is carried out in the whole society, it will obviously conflict with this network system that can provide various access services to the society for the special purposes of various departments, and it is impossible to have economic advantages. In this case, the networking of small industries and small areas is a waste, which is not fundamentally helpful to solve the management problems of water supply departments.
Then, will the single intelligent instrument mode widely used now conflict with the future networked management mode? My opinion is negative, on the contrary, it will promote the formation of network management mode. Because there is no contradiction between the single intelligent instrument mode and the future network mode. Because no matter what network mode, there must be an intelligent terminal connected to it in the end. The single intelligent instrument used now can be used as the intelligent instrument terminal of the network management system in the future. Therefore, they are not in conflict, but in inheritance. If we can fully realize this now and find a reasonable technical solution, we will take the initiative in realizing networking in the future.
What should I do if the ic card cold water meter is out of power?
First of all, if you use a card to brush the sensing area of the water meter, the LCD screen does not respond or the valve cannot be opened when swiping the card, which means that the water meter battery is dead and needs to be replaced before it can continue to be used. Why do many residential property personnel tell you to change the water meter? That's because they don't know when the water meter needs to be replaced. At this time, they can call the hotline of the manufacturer who bought the water meter, consult the after-sales personnel in detail or communicate and coordinate with the property personnel. It is more convenient and quick to replace the whole ic card cold water meter, the only thing is that the cost is relatively high. For this reason, everyone's understanding of smart water meters is not very high. This requires water meter companies to train property company personnel when selling products, and even train more people to learn, so that more people can learn how to manage and maintain after-sales service. The smart water meter needs to be sent back to the water meter manufacturer for replacement or maintenance by professional maintenance personnel to ensure that the water meter can be replaced and used correctly.
Crack of ic card cold water meter
It is possible that you will encounter such a situation. For example, someone asked the question of cracking the ic card cold water meter. For example, an IC card smart water meter is installed here. I would like to ask you to directly dismantle this smart water meter and connect it with pipes. Is this water meter an alarm or should the management office look for it right away?
The answer is that it will not be found immediately, but now many property management systems will automatically screen out users who have not bought water in the last 1 to 3 months, so it is not advisable to check the property. Although you removed the smart water meter, if there is a big gap between the property water fee and the water fee, you will find it in the water meter system. Once found, it is not desirable. Although you removed the smart water meter, if there is a big gap between the property water fee and the water fee, you will find it in the water meter system. ?
The above is the introduction of IC card cold water meter. From the classification of IC card cold water meters, we can see that there are different classification methods, and then the choice of pharmacies, which is also what users should pay attention to, whether it is the working environment, water consumption or the choice of new house water meters. Then its construction and installation, I hope the installer can pay attention to its installation points, and finally the development status of IC card cold water meter, which is conducive to the development of microelectronics technology. It is the product of the intelligent development of water meters. I hope the above introduction of IC card cold water meter will help you.
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