The prepaid IC card steam flowmeter system consists of a steam flow sensor, pressure sensor, temperature sensor, IC card prepaid controller, IC card, card reader, and recharge software. There is a common management mindset of "heavy equipment, light measurement" in current heating enterprises. The measuring facilities used are outdated, small flow meters do not output, large flow rates do not move, and the measuring instruments installed on site do not have reliable anti-theft measures... The existence of such phenomena invisibly increases the management losses of heating enterprises and easily leads to measurement disputes and difficulty in charging. Once a heating enterprise incurs arrears, it is likely to use various social relationships to evade and delay payment. However, it is difficult for heating enterprises to stop gas supply due to arrears, and the arrears often increase, making it difficult to solve. Over time, this stubborn problem will spread to other heating enterprises. In addition, the lack of integrity of some heating enterprises and the closure and merger caused by business operations have made heating enterprises suffer unbearable. Therefore, in order to ensure the normal operation and legitimate rights and interests of heating enterprises, and to eliminate such positive phenomena, we have developed a "steam metering prepayment device" using mature technological means, with the concept of "paying first, then using steam"

Management process after installing the "Steam Metering Prepaid Device"

After installing the "Steam Metering Prepaid Device" at the user's site, the user * * pays the steam fee in advance to the heating unit. After the steam fee is confirmed by the finance department of the heating enterprise, relevant personnel are notified to use the recharge software to recharge the user's IC card. The heating network management personnel bring the IC card to the site for "card swiping". After receiving the information from the IC card, the device will calculate the user's available steam volume based on the set steam unit price, and automatically start the valve for steam supply, dynamically displaying the remaining available steam volume, remaining amount, and all measurement parameters.

When the remaining amount of the user is insufficient, the on-site instrument will emit a buzzing alarm sound to remind the customer to pay as soon as possible (in conjunction with the remote monitoring system of the heating network, mobile SMS notification can be achieved). Otherwise, when the balance in the meter reaches zero, the system will automatically close the valve and stop heating.

At the same time, to avoid human modification of the measuring instruments installed on site, our company will provide anti-theft boxes to uniformly cover the relevant instruments and lock them using wireless remote control. They can only be opened normally after unlocking with the remote control. Otherwise, it will be considered as car theft and the system will automatically close the valve and stop the steam.

Introduction to the Main Functions of Prepaid IC Card Steam Flow Meter Device

1、 Anti theft control:

In order to prevent unauthorized users from stealing gas, a primary instrument anti-theft box and a secondary instrument control box have been designed with anti-theft features; After the installation and debugging of the instrument are completed, use the remote control to lock the instrument box and anti-theft box, and the anti-theft indicator light (red) will light up. At this time, the instrument is in anti-theft operation mode; If he wants to steal gas, he needs to open the anti-theft box or the secondary instrument control box, tamper with any instrument, but as long as he opens any anti-theft box, the system will automatically close the valve, and the user cannot open it. Only the gas supply management personnel can decode it with the remote control and open the valve to supply gas normally.

2、 UPS dual independent power supply:

In order to prevent the inability of instruments to measure and valves to close due to AC power outages, a dual UPS independent power supply was designed, with one for the settlement instrument and the other for the valve switch. The single battery capacity is 32Ah, ensuring that the instruments can measure normally and the valves can be opened and closed normally after AC power outages. Generally, the valve of a factory flowmeter cannot be opened and closed after AC power outages, and it also loses its anti-theft function.

3、 Multiple lightning protection:

The system motherboard and measuring box are both designed with lightning protection circuits. When encountering lightning, the lightning protection circuit quickly responds and provides protection, and then the circuit automatically recovers. If the instrument is installed in an open area, a lightning protection grounding rod should be installed to ensure normal measurement; Considering that some users use it in chemical plants or environments with corrosive gases, we also perform three protection treatments on the circuit board: anti-corrosion, moisture-proof, and anti-oxidation.

At present, the metering facilities used by heating enterprises are a set of orifice flow meters or vortex flow meters, plus a metering box with a flow accumulator inside, often equipped with backup power supply and GPRS module. The price of such configuration is generally between 20000 and 30000 yuan depending on the pipe diameter. Compared with this, although the "pre paid metering device for heating network" increases the cost by 10000 to 20000 yuan at once, it has achieved innovation and improvement in at least six aspects:

The product uses an "anti vibration vortex flowmeter" with an extremely wide measurement range and anti vibration effect. The range ratio for measuring steam can exceed 20:1, for example, the measurement range of DN50 can be between 0.3t and 3.5t. This is very effective for users who use steam intermittently or intentionally at both ends, especially traditional vortex flowmeters, which are difficult to resist vibration interference. However, this flowmeter can achieve counting when the user opens the valve and stopping when the pipe valve stops, but it does not count when hit by a hammer, avoiding measurement disputes caused by such problems.

Secondly, the "steam metering prepayment device" is equipped with an automatic valve control system, which is customized to ensure no leakage within 400 ℃;

The steam metering prepayment device is equipped with a complete electronic anti-theft system;

The steam metering prepayment device is equipped with a lightning protection system to ensure that it is not damaged by lightning strikes;

The steam metering prepayment device is equipped with a large capacity UPS system, which can ensure that it will not be affected for 7 days in the event of a power outage within 2 years;

The steam metering prepayment device is equipped with an IC card recharge system;

Especially, the "steam metering prepayment device" can solve the problem of arrears for heating enterprises, greatly improve the work efficiency and management benefits of personnel, and the benefits in this regard are incalculable!

▲ Various flow meters such as electromagnetic flowmeter, vortex flowmeter, turbine flowmeter, orifice flowmeter, etc. can be configured for integrated control and pre charging control, and remote pre charging can be customized.

▲ Integrated design of voltage regulation and compensation.

▲ The current output is all electrically isolated, with good common mode interference suppression capability.

Simultaneously display the flow value and cumulative flow value, without the need to switch between them.

▲ Adopting anti vibration probes to effectively eliminate the influence of external vibrations.

The circuit adopts surface mount technology, with a compact structure and high reliability.

▲ Adopting a split type signal converter with a cable length of 10 meters.

▲ The range ratio is as wide as 20:1.

The overall structural design is reasonable, the dynamic measurement range is wide, and the pressure loss is small.

The split type vortex flowmeter is made of 304 stainless steel material and is suitable for measuring corrosive media.

▲ On site LCD display, pulse, 4-20mA output or 485 interface, can be connected to industrial automation systems.

For more product information, please consult our toll free hotline at +0086 400 880 6367