Pulse injection control system of stepped furnace

Abstract

According to the advanced stepped furnace pulse injection control system, the sensor unit, the control unit, the client system, the data processing unit, the pulse generator and the injection device are integrated in the system, and automatic and accurate control over the injection process in the stepped furnace is achieved. The system detects key parameters such as flow, pressure, temperature and gas density in the furnace in real time through the sensor unit and sends data to the control unit and the data processing unit. And the data processing unit is combined with an algorithm function predefined by a user to calculate optimized blowing decision data, and then the optimized blowing decision data is sent to the control unit. The control unit converts the decision data into electric control signals, drives the pulse generator to generate accurate pulse signals, and further controls the injection device to perform injection operation. The system also shows the advantages of flexibility, accuracy, safety, energy conservation, environmental protection and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of industrial heat treatment especially relates to the pulse injection control system of ladder furnace. BACKGROUND

[0002] Traditional ladder furnace has certain limitations in temperature and atmosphere control. Due to its design and operating characteristics, this furnace type faces challenges in maintaining precise temperature and atmosphere conditions, especially in modern industrial production where the demand for precision and efficiency is growing. These limitations result in ladder furnace being less capable of adapting to rapidly changing industrial demands.

[0003] Pulse injection technology is introduced as an advanced technology to solve these problems. This technology aims to optimize the heat distribution within the furnace by periodically injecting gas into the furnace chamber, while promoting more efficient chemical reactions. This approach has the potential to significantly improve the control accuracy of temperature and atmosphere, thereby improving product quality and production efficiency. However, despite the significant advantages of pulse injection technology in theory, existing implementations still have some shortcomings in practical application. Control accuracy problems may arise from inaccurate sensors, immature control strategies, or delayed responses of actuators. Problems in system stability may manifest as sensitivity to external disturbances, performance degradation over long periods of operation, or inconsistent performance between different production batches. In order to overcome these shortcomings, further technical innovation and optimization of the control system are needed. This includes developing more accurate and reliable sensors, designing better control strategies, and using more advanced actuators to ensure that the response speed and stability of the pulse injection system are improved. In this way, the temperature and atmosphere control capabilities of the ladder furnace will better meet the high standards of modern industrial production. SUMMARY

[0004] The pulse injection control system of the ladder furnace, characterized by comprising a sensor unit, a control unit, a client system data processing unit, a pulse generator, and an injection device.

[0005] The sensor unit is connected to the control unit and sends detection data to the control unit.

[0006] The control unit is connected to the data processing unit, converts the received detection data into decision data and sends it to the data processing unit.

[0007] The client system is connected to the data processing unit and supports user-defined algorithm functions.

[0008] The data processing unit calculates corresponding decision data according to the received detection data combined with the algorithm functions predefined by the client system and sends it to the control unit. The control unit converts the decision data into electrical control signals and sends them to the pulse generator after receiving the decision data.

[0009] The pulse generator is connected to the control unit and generates a pulse signal to the blowing device according to the electrical control signal;

[0010] The blowing device is connected to the pulse generator and performs blowing operation according to the pulse signal to complete the pulse blowing process.

[0011] Preferably, the sensor unit includes a flow sensor, a pressure sensor, a furnace temperature sensor, and a gas density sensor.

[0012] Preferably, the data processing unit strategy data is the pulse blowing gas flow velocity (V_p) of the blowing device controlled by the pulse generator.

[0013] Preferably, the flow sensor can measure the density (p) of the gas in the stepped furnace, the gas density sensor can measure the gas density (P) in the stepped furnace, and the furnace temperature sensor can measure the temperature (T) in the stepped furnace.

[0014] Preferably, the decision data is calculated by the data processing unit through a pre-defined algorithm formula, and the qualitative expression is:

[0015] V_p = f(P, T, p)

[0016] Where (f) is a customer-defined function that describes the comprehensive influence of blowing pressure, temperature, gas density, pipe cross-sectional area, and flow on gas flow velocity.

[0017] Preferably, the pre-defined algorithm function is determined by the user through experiment or numerical simulation.

[0018] The beneficial effects of the utility model are:

[0019] 1. The system detects various parameters (such as flow, pressure, temperature, and gas density) in the stepped furnace in real time through the sensor unit, and automatically calculates and controls through the control unit and the data processing unit. This high degree of automation reduces the need for manual intervention and improves work efficiency.

[0020] 2. Since the system can obtain real-time state data in the stepped furnace and calculate in combination with the pre-defined algorithm function, it can achieve very precise control of the blowing device. This not only ensures the stability and reliability of the blowing process, but also optimizes the blowing process and improves product quality.

[0021] 3. The pre-defined algorithm function allows users to adjust and optimize according to actual needs. This means that the system can adapt to different process requirements and operating conditions, with strong flexibility and adaptability. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is the pulse injection control system hardware structure diagram of the step furnace of the utility model.

[0023] In the figure: 1, sensor unit; 1-1, sensor; 1-2, pressure sensor; 1-3, gas density sensor; 2, control unit; 3, client system; 4, data processing unit 5, pulse generator; 6, injection device. DETAILED DESCRIPTION

[0024] The pulse injection control system of the step furnace, characterized by comprising sensor unit 1, control unit 2, client system 3 data processing unit 4, pulse generator 5, injection device 6;

[0025] Sensor unit 1 is connected with control unit 2 and sends detection data to control unit 2; sensor unit 1 includes flow sensor 1-1, pressure sensor 1-2, furnace temperature sensor, gas density sensor 1-3.

[0026] Control unit 2 is connected with data processing unit 4, and after receiving, it is converted into detection data and sent to data processing unit 4.

[0027] Client system 3 is connected with data processing unit 4, supports user pre-defined algorithm function, and the pre-defined algorithm function is determined by the user through experiment or numerical simulation.

[0028] Data processing unit 4 calculates corresponding decision data according to the received detection data in combination with the pre-defined algorithm function of client system 3 and sends it to the control unit, and control unit 1 converts the decision data into an electric control signal after receiving the decision data and sends it to pulse generator 5. Flow sensor 1-1 can measure the density ( \rho ) of gas in the step furnace, gas density sensor 1-2 can measure the gas density (P) in the step furnace, and furnace temperature sensor 1-3 can measure the temperature (T) in the step furnace. Decision data is calculated by data processing unit 4 through pre-defined algorithm formula, and its qualitative expression is:

[0029] V_p = f(P, T, \rho)

[0030] Where (f) is a function predefined by the client, which describes the comprehensive influence of injection pressure, temperature, gas density, pipe cross-sectional area and flow on gas flow velocity.

[0031] Pulse generator 5 is connected with control unit 2, generates pulse signal to injection device according to electric control signal, and data processing unit 4 strategy data is pulse injection public welfare gas flow velocity (V_p) of the injection device 6 controlled by pulse generator 5.

[0032] The blowing device 6 is connected with the pulse generator 5, and performs blowing operation according to the pulse signal to complete the pulse blowing process.

Claims

1. A pulse injection control system for a step furnace, characterized in that The application relates to a pulse spraying system, which comprises a sensor unit (1), a control unit (2), a client system (3), a data processing unit (4), a pulse generator (5) and a spraying device (6); the sensor unit (1) is connected with the control unit (2) and sends detection data to the control unit (2); the control unit (2) is connected with the data processing unit (4), converts the received detection data into decision data and sends the decision data to the data processing unit (4); the client system (3) is connected with the data processing unit (4) and supports user-defined algorithm functions; the data processing unit (4) calculates corresponding decision data according to the received detection data and the algorithm functions defined by the client system (3) and sends the decision data to the control unit; the control unit (1) converts the received decision data into an electric control signal and sends the electric control signal to the pulse generator (5); the pulse generator (5) is connected with the control unit (2), generates a pulse signal according to the electric control signal and sends the pulse signal to the spraying device; and the spraying device (6) is connected with the pulse generator (5), sprays according to the pulse signal and thus completes the pulse spraying process.

2. The pulse injection control system for a staged furnace as set forth in claim 1, wherein, The sensor unit (1) comprises a flow sensor (1-1), a pressure sensor (1-2), a furnace temperature sensor and a gas density sensor (1-3).

3. The pulse injection control system for a staged furnace as set forth in claim 1, wherein, The decision data of the data processing unit (4) is the pulse spraying gas flow velocity (V_p) of the spraying device (6) controlled by the pulse generator (5).

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