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Liaoning Xinruipeng Environmental Protection Technology Co., Ltd

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Plug in thermal gas mass flowmeter

NegotiableUpdate on 05/06

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Overview

Liaoning Xinruipeng Environmental Protection Plug in Thermal Gas Mass Flow Meter is based on the principle of thermal diffusion and adopts the industry's mainstream constant temperature difference measurement method. Unlike traditional flow measurement equipment that requires additional temperature and pressure compensation, it can directly achieve accurate measurement of gas mass flow rate, improving measurement efficiency and accuracy from the root. The core sensing element consists of two high-precision platinum RTD sensors, one is a speed sensor and the other is a temperature compensation sensor, which work together to ensure measurement stability under complex working conditions.

Product Details

插入式热式气体质量流量计

In the field of environmental monitoring and industrial process control, accurate measurement of gas flow is the core prerequisite for achieving energy conservation, consumption reduction, and emission standards. Liaoning Xinruipeng Environmental Protection Technology Co., Ltd. is deeply engaged in the field of environmental monitoring, relying on professional research and development strength and experience in scenario based applications, and has launchedPlug in thermal gas mass flowmeterSpecially designed for complex working conditions such as industrial waste gas, environmental protection, and chemical production, it has become the preferred equipment for various gas flow measurement scenarios due to its advantages of no need for temperature and pressure compensation, easy installation, and strong anti-interference. It not only meets the needs of enterprises to improve production efficiency, but also helps to implement environmental compliance monitoring.

1、 Core Measurement Principles

Liaoning Xinruipeng Environmental ProtectionPlug in thermal gas mass flowmeterBased on the principle of thermal diffusion, the industry's mainstream constant temperature difference measurement method is adopted, which differs from the drawbacks of traditional flow measurement equipment that require additional temperature and pressure compensation. It can directly achieve accurate measurement of gas mass flow rate, improving measurement efficiency and accuracy from the root. The core sensing element consists of two high-precision platinum RTD sensors, one is a speed sensor and the other is a temperature compensation sensor, which work together to ensure measurement stability under complex working conditions.

When working, the speed sensor is heated to a constant temperature above the ambient temperature, and the temperature compensation sensor senses the medium temperature of the measured gas in real time. When the gas flows through the sensor, it takes away the heat from the surface of the speed sensor. The faster the gas flow rate, the more heat it takes away, and the temperature of the speed sensor decreases accordingly. To maintain a constant temperature difference between the speed sensor and the medium, the device will automatically adjust the working current passing through the sensor, and the additional current is precisely proportional to the gas flow rate.

Combined with the AI optimization algorithm independently developed by Xinrui Peng, the device can dynamically correct the flow signal at 12 points, with built-in 10 point correction parameters, effectively offsetting the interference of factors such as gas humidity, dust, and corrosive components, further improving measurement accuracy. At the same time, based on the principle of thermal diffusion, this flowmeter does not require contact measurement, has no movable parts, fundamentally reduces equipment wear, extends service life, and also reduces maintenance costs, adapting to the long-term continuous measurement needs of complex gases in environmental monitoring.

The measurement logic can be intuitively reflected through the formula: m=H/(Cp × Δ T), where m is the gas mass flow rate, H is the compensated electrical power, Cp is the gas specific heat capacity at constant pressure, and Δ T is the constant temperature difference between two sensors. By monitoring the changes in electrical power in real time, the gas mass flow rate can be accurately calculated, achieving true direct mass measurement without the need for additional compensation equipment, greatly simplifying on-site installation and operation processes.

2、 Core technical parameters

Liaoning Xinruipeng Environmental ProtectionPlug in thermal gas mass flowmeterFocusing on the practical needs of environmental protection and industrial scenarios, targeted optimization is carried out on technical parameters, taking into account measurement accuracy, environmental adaptability, and operational convenience. The core parameters are as follows, and customized adjustments can be provided according to specific customer working conditions:

（1） Core measurement parameters

Measurement range: (0.05-80) Nm/s (standard state is 20 ℃, 101.33KPa), with a range ratio of 1000:1, which can be expanded according to user needs. The minimum flow rate can be measured as low as zero, with a resolution of 0.001m/s, suitable for full scene measurement from small flow rates to large flow rates.
Measurement medium: various clean gases and industrial waste gases (including small amounts of dust and moisture) except acetylene gas, including blast furnace gas, coke oven gas, flue gas, biogas, ammonia gas, etc. Customized anti-corrosion probes can be selected for corrosive gases.
Measurement accuracy: ± 1% reading ± 0.5% full-scale, repeatability ± 0.5% full-scale, meeting high-precision requirements for environmental monitoring, industrial metrology, etc. The data can be directly connected to the environmental monitoring system to ensure compliance and effectiveness of monitoring data.
Response speed: less than 1 second, can quickly capture gas flow fluctuations, provide real-time feedback on flow changes, suitable for industrial scenarios with unstable flow.

（2） Environment and medium adaptation parameters

Environmental temperature: -40 ℃~+60 ℃, suitable for harsh northern temperatures, industrial high temperatures and other environments, with a protection level of IP65, dustproof and waterproof, suitable for complex installation scenarios such as outdoor and industrial workshops.
Medium temperature: -10 ℃~+200 ℃, supports high-temperature gas measurement, optimized through proprietary high-temperature algorithms, can cope with industrial waste gas high-temperature emission scenarios, and can be extended to+510 ℃ under special working conditions.
Working pressure: 1.6MPa, negligible pressure loss, no need to worry about affecting the pressure of the original pipeline system, suitable for various industrial pipeline working conditions.
Material selection: The sensor and pipeline body are made of 316L stainless steel, with the option of Hastelloy C. The probe rod is treated with a corrosion-resistant coating, which can withstand the corrosion of corrosive components such as sulfides in flue gas and extend the service life of the equipment under complex working conditions.

（3） Installation and output parameters

Installation method: Plug in installation, no need to cut off the pipeline, suitable for pipe diameter range of 10mm~6000mm, especially suitable for on-site installation of large-diameter flue and industrial pipelines, high installation efficiency, does not affect normal production operation, can achieve online uninterrupted loading and unloading, and easy maintenance.
Specification of probe: The standard probe length is 800mm and the diameter is 18mm. It can be customized and extended according to the diameter of the pipeline. The insertion depth can be adjusted according to the condition of the straight pipe section (when the diameter is greater than 250mm, it is inserted at 1/2 of the inner diameter of the pipeline, and when the diameter is ≤ 250mm, it is inserted at 1/3 of the inner diameter of the pipeline).
Output signal: Instantaneous flow 4-20mA DC (load 600 Ω), supports RS232, RS485 communication interfaces, can be connected to PLC, DCS systems and environmental monitoring platforms, realizing real-time data transmission, remote monitoring and historical data query.
Display and data protection: LED dual row display, with instantaneous flow rate in the upper row (4 characters) and cumulative flow rate in the lower row (8 characters), supporting switching between imperial and metric units; The accumulated amount is stored in EEROM and can be saved for a hundred years when powered off, ensuring that data is not lost.
Power supply voltage: 24VDC ± 10%, low energy consumption, suitable for conventional power supply conditions in industrial sites, optional explosion-proof packaging, meeting the needs of explosion-proof scenarios such as chemical and metallurgical industries.

3、 Main application industries

Liaoning Xinruipeng Environmental ProtectionPlug in thermal gas mass flowmeterWith environmental monitoring as the core positioning and excellent adaptability and accuracy, it is widely used in gas flow measurement scenarios in multiple industries, especially in the fields of industrial waste gas treatment and environmental monitoring. The specific application industries are as follows:

（1） Environmental Protection Industry

As a core equipment for environmental monitoring, this flowmeter is mainly used for monitoring industrial waste gas emissions, measuring gas in sewage treatment aeration tanks, and measuring flow rates for biogas utilization. In exhaust gas monitoring, the flow rate of boiler flue gas and industrial furnace exhaust gas can be accurately measured, providing precise data support for the calculation of total emissions of pollutants such as SO ₂ and NOx, and helping enterprises achieve standard emissions; In the field of sewage treatment, it is possible to monitor the air flow in the aeration tank, optimize aeration efficiency, reduce energy consumption, and provide data basis for adjusting the sewage treatment process.

（2） Metallurgical industry

Suitable for the complex working conditions of metallurgical enterprises such as steel plants and coking plants, used for flow measurement of blast furnace gas and coke oven gas, as well as flow control monitoring of heating furnace gas in steel rolling mills. In response to the characteristics of gas containing dust, strong corrosiveness, and large flow fluctuations in the metallurgical industry, the equipment can achieve long-term stable measurement through anti-corrosion probes and AI anti-interference algorithms, providing accurate data for metallurgical process optimization, energy conservation and consumption reduction, and helping enterprises achieve precise measurement of gas recovery and utilization.

（3） Chemical industry

Applied to the flow measurement of various gases in chemical production processes, including ammonia measurement in fertilizer plants, flue gas circulation monitoring, gas flow measurement in sampling systems, and gas flow control in battery factories. The equipment does not require temperature and pressure compensation and can directly measure gas mass flow rate, avoiding the impact of temperature and pressure fluctuations on measurement accuracy in chemical production, ensuring the stability and safety of the production process, and providing accurate measurement support for chemical waste gas treatment and resource recovery.

（4） Power industry

Mainly used for measuring the flow rate of primary and secondary air in thermal power plant boilers, as well as controlling the intake flow rate of gas turbines. By accurately measuring the inlet air flow rate, optimizing boiler combustion efficiency, reducing coal consumption and exhaust emissions, helping power enterprises achieve energy conservation, consumption reduction, and environmental standards, and providing reliable data support for adjusting power production processes.

（5） Other industries

In addition, this flowmeter is widely used in scenarios such as food and medicine (carbon dioxide treatment in breweries, ventilation system control), semiconductor manufacturing (precise gas flow control), mine ventilation or exhaust system flow detection, etc. With the advantages of convenient installation, accurate measurement, and easy maintenance, it meets the personalized measurement needs of different industries.

4、 Typical project cases

Liaoning Xinruipeng Environmental Protection always adheres to the concept of "technology adaptation to scenarios, product service needs"Plug in thermal gas mass flowmeterIt has been successfully applied to multiple large-scale industrial and environmental projects, and has gained wide recognition from customers with stable performance, accurate measurement, and excellent service. The following are two typical project cases:

Case 1: Monitoring Project of Blast Furnace Gas Flow in a Steel Plant of Ansteel

Project background: A certain steel plant in Angang has a large amount of blast furnace gas emissions, and real-time monitoring of blast furnace gas flow is required for gas recovery, utilization, measurement, and environmental emission accounting. In this scenario, the gas contains a small amount of dust and sulfides, with strong corrosiveness, and the pipeline diameter is large (DN800mm), with frequent flow fluctuations. Traditional flow meters have problems such as complex installation, low measurement accuracy, and easy damage, which cannot meet the long-term stable monitoring needs.

Solution: Customize Liaoning Xinruipeng for this projectPlug in thermal gas mass flowmeter12 units, equipped with corrosion-resistant Hastelloy alloy probes, suitable for the corrosive working conditions of blast furnace gas; Optimize the length and insertion depth of the probe to meet the measurement requirements of large-diameter pipelines; By using AI anti-interference algorithms to counteract the impact of dust and flow fluctuations on measurement accuracy, and supporting integration with factory DCS systems, real-time transmission and remote monitoring of flow data can be achieved.

Project effectiveness: After equipment installation, 24-hour continuous and stable monitoring of blast furnace gas flow was achieved, with a measurement accuracy of ± 1% and data errors far below industry standards, effectively supporting accurate measurement and environmental emission accounting for gas recovery and utilization; The equipment runs stably for over 3 years, with maintenance costs reduced by 60% compared to traditional flow meters; The plug-in installation method has not affected the normal production of the factory, and the installation efficiency is 40% higher than that of traditional pipeline flow meters, which has been highly recognized by customers.

Case 2: Flow Monitoring Project for Waste Gas Treatment in a Chemical Enterprise in Liaoning Province

Project background: This chemical enterprise mainly produces fertilizers, which generate a large amount of ammonia containing waste gas and process exhaust gas during the production process. Accurate monitoring of the waste gas flow is required to ensure the efficient operation of the waste gas treatment system and meet the emission monitoring requirements of the environmental protection department. In this scenario, the exhaust gas temperature is relatively high (120 ℃ -180 ℃), containing corrosive components, and the pipeline layout is complex, with a short straight pipe section, requiring high environmental adaptability and installation flexibility of the flowmeter.

Solution: Configure Liaoning Xinruipeng for this projectPlug in thermal gas mass flowmeter8 units, adopting high temperature adaptation design, supporting 180 ℃ medium temperature measurement, ensuring measurement accuracy through proprietary high temperature algorithms; Choose 316L stainless steel corrosion-resistant probe, which can withstand corrosive components in exhaust gas; Optimize installation plan to adapt to working conditions with shorter straight pipe sections (only 1-2D straight pipe sections are required), without the need to modify existing pipelines, reducing project renovation costs; The device supports RS485 communication and interfaces with the enterprise environmental monitoring platform to achieve real-time reporting of traffic data and historical curve queries.

Project effectiveness: After the equipment is put into use, it accurately monitors the changes in exhaust gas flow rate, provides reliable data for the process adjustment of the exhaust gas treatment system, improves the efficiency of exhaust gas treatment by 15%, and achieves standard emissions; The equipment operates stably under high temperature and corrosive conditions, with fast response speed, and can quickly capture flow fluctuations to avoid the risk of exhaust gas leakage; The full chain service model (pre-sales selection, in sales installation, after-sales maintenance) ensures the smooth implementation of the project, and the equipment has been running without major failures, gaining full recognition from customers.

5、 Customer reviews

Since the product was launched on the market, Liaoning Xinruipeng Environmental ProtectionPlug in thermal gas mass flowmeterWith precise measurement performance, stable operation, convenient installation and maintenance, and excellent after-sales service, we have received widespread praise from customers in various industries. Here are some real evaluations from customers:

The person in charge of the equipment management department at Ansteel said, "The monitoring conditions for blast furnace gas flow in our factory are complex, with a lot of dust and strong corrosiveness. We have used multiple flow meters before, but either the measurement accuracy did not meet the standard or they were easily damaged. The Xinrui Peng plug-in thermal flow meter is easy to install, does not use cut-off pipelines, and has almost no faults in operation for more than 3 years. The measurement data is accurate and can be directly connected to our DCS system, greatly reducing our management costs. It is very suitable for the needs of the steel industry. ”
As a chemical enterprise, we have high requirements for the accuracy and stability of exhaust gas flow monitoring. The flow meter of Xinruipeng is suitable for our high temperature and corrosive working conditions, with accurate and reliable measurement data. It can be directly connected to the environmental monitoring platform to help us smoothly complete emission accounting. Moreover, their pre-sales selection guidance is very professional, and they will customize solutions according to our pipeline diameter and medium composition. The after-sales response is also very fast, and any problems can be solved within 24 hours. The service is very thoughtful
A project engineer from an environmental technology company said, 'We have selected the cutting-edge Peng in multiple waste gas treatment projects.'Plug in thermal gas mass flowmeterThe advantage of this device is that it does not require temperature and pressure compensation, is easy to install, and has a wide range ratio. It can measure small flow rates as well as large flow rates, and is suitable for pipes of different diameters. In practical applications, the measurement accuracy is stable and the data transmission is smooth, greatly improving the construction efficiency and monitoring quality of our project. It is a cost-effective equipment. ”
The monitoring of secondary air flow in our power plant's boiler has always been a difficult problem, with large temperature fluctuations, unstable flow rates, and large measurement errors in traditional flow meters. The flow meters of New Star Peng use the principle of constant temperature difference, without additional compensation, with high measurement accuracy and fast response speed. They can provide real-time feedback on flow changes, help us optimize boiler combustion efficiency, reduce energy consumption, and have simple maintenance, greatly reducing our operation and maintenance pressure

6、 Product advantages and enterprise services

Liaoning Xinruipeng Environmental ProtectionPlug in thermal gas mass flowmeterThe reason why it stands out among many similar products lies in the differentiation advantages of its products and the service system of the enterprise. In terms of product advantages, firstly, it directly measures gas mass flow rate without temperature and pressure compensation, with high measurement accuracy, avoiding the influence of temperature and pressure fluctuations on data; The second is plug-in installation, which does not require cutting off pipelines, is easy to install, does not affect production, and is suitable for large-diameter pipelines and complex pipeline layouts; Thirdly, it has no movable parts, low wear and tear, low maintenance costs, long service life, and the probe adopts anti-corrosion design to adapt to complex working conditions; The fourth is to support intelligent data transmission and remote monitoring, which can be integrated with various control systems and environmental monitoring platforms to meet the needs of intelligent management.

In terms of service system, Liaoning Xinruipeng implements a full chain service model of "pre-sales condition matching+in sales installation guidance+lifelong after-sales maintenance". Before sales, professional engineers will provide customized selection plans based on the customer's pipeline diameter, medium composition, working conditions, etc., to avoid usage problems caused by model mismatch; During the sale, arrange professional technical personnel to provide on-site guidance on installation and debugging to ensure the normal operation of the equipment; After sales, establish a 24-hour response mechanism, provide lifelong maintenance services, conduct regular on-site inspections, promptly solve problems that arise during equipment operation, and provide technical training to help customers master equipment operation and maintenance skills.

As a professional enterprise focusing on the field of environmental monitoring, Liaoning Xinruipeng Environmental Protection always takes technological innovation as the core, customer needs as the guide, continuously optimizes product performance, * service system, and is committed to providing accurate, stable, and efficient gas flow measurement solutions for various industries.Plug in thermal gas mass flowmeterAs the core product of the company, it not only helps enterprises achieve production efficiency improvement and energy conservation, but also provides reliable support for environmental compliance monitoring, contributing to the development of China's environmental protection cause.