Novel cooling system on-line monitoring device

Abstract

The utility model belongs to the technical field of blast furnace cooling devices, and relates to a novel cooling system on-line monitoring device which comprises a tuyere sleeve, a water inlet pipe and a water outlet pipe are respectively connected onto the tuyere sleeve, connecting flanges are arranged at the tail ends of the water inlet pipe and the water outlet pipe, and turbine flowmeters are arranged in the water inlet pipe and the water outlet pipe. A temperature display screen is arranged on the side wall of the tuyere sleeve and comprises a temperature sensing probe, one end of the temperature sensing probe is inserted into the tuyere sleeve, a bearing is arranged at the other end of the temperature sensing probe and connected with a rotary connecting block, the rotary connecting block is connected with a fixed connecting block, and a liquid crystal screen is arranged on the fixed connecting block. The blast furnace tuyere sleeve cooling efficiency monitoring device has the dual functions of monitoring the cooling water flow and the tuyere temperature in real time, accurately detects the flow speed of a pipeline through the built-in turbine flowmeter, and realizes dynamic visual monitoring of the cooling efficiency of key parts of the blast furnace tuyere sleeve in cooperation with the rotatable digital display screen.

Description

Technical Field

[0001] This utility model belongs to the technical field of blast furnace cooling devices, specifically relating to a novel online monitoring device for cooling systems. Background Technology

[0002] The blast furnace cooling system involves complex processing techniques and uses widely distributed equipment, making effective monitoring of the processing site crucial. The application of PLC fieldbus technology enables real-time monitoring of the processing technology, effectively ensuring smooth production and improving industrial efficiency. The high-pressure water jacket cooling system is a vital component of the blast furnace smelting system, undertaking the critical task of cooling the blast furnace body and closely related to its stable operation. Problems with the cooling system, if not properly addressed or detected early, will severely threaten blast furnace production and cause significant economic losses.

[0003] The current blast furnace cooling system and its control strategy have the following problems: the monitoring and control strategy for the small jacket water pressure and flow rate and the processing of detection data are too simple, which can easily cause equipment to malfunction or not operate under special circumstances, affecting the smooth operation of the entire cooling system. Moreover, it is difficult to observe the flow rate in the small jacket cooling system in real time, making it difficult to give full play to the emergency response capability of the cooling system in handling accidents.

[0004] Therefore, a novel online monitoring device for the cooling system is proposed, which uses digital temperature sensors and flow meters to monitor the temperature and flow parameters of the blast furnace cooling water system. Based on this data, historical records, and manually set parameters, the device analyzes and compares the data and makes necessary adjustments to address any undesirable conditions. This allows for the adjustment of the inlet and outlet pipe diameters, reducing nominal pressure, lowering energy consumption, saving energy, and eliminating unnecessary waste caused by equipment travel. Utility Model Content

[0005] The purpose of this invention is to provide a novel online monitoring device for cooling systems, which has the function of online monitoring of cooling systems and solves the problems of the prior art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: This utility model provides a novel online monitoring device for a cooling system, including an air vent sleeve. An inlet pipe and an outlet pipe are respectively connected to the air vent sleeve. A connecting flange is provided at the end of the inlet pipe and the outlet pipe. A turbine flow meter is provided inside the inlet pipe and the outlet pipe. A temperature display screen is provided on the side wall of the air vent sleeve. The temperature display screen includes a temperature sensing probe. One end of the temperature sensing probe is inserted into the air vent sleeve, and the other end is provided with a bearing. The bearing is connected to a rotating connecting block, and the rotating connecting block is connected to a fixed connecting block. An LCD screen is provided on the fixed connecting block.

[0007] Preferably, the turbine flow meter includes a meter head and a rotating shaft. The rotating shaft is connected to the inner wall of the inlet pipe and the outlet pipe by a fixed bracket, and a flow turbine is provided on the rotating shaft.

[0008] Preferably, the temperature probe is made of nickel-based alloy and is inserted into the air vent sleeve as the temperature measuring end. The temperature measuring end is equipped with a temperature sensor, and the rotating connecting block shaft is connected to the fixed connecting block.

[0009] Preferably, the connecting flange is a 304 stainless steel flange, and the connecting flange is inlaid with a sealing gasket.

[0010] Preferably, the fixed bracket is a 316 stainless steel support frame, and the fixed bracket is fixed to the pipe walls of the inlet pipe and the outlet pipe by laser welding. The surface of the flow turbine is coated with a polytetrafluoroethylene wear-resistant coating, and the shaft adopts a ceramic bearing.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0012] 1. This utility model has the dual function of real-time monitoring of cooling water flow rate and tuyere temperature. It accurately detects the pipeline flow rate through the built-in turbine flow meter and, together with the rotatable digital display screen, realizes dynamic and visual monitoring of the cooling efficiency of key parts of the blast furnace tuyere jacket.

[0013] 2. This utility model utilizes digital temperature sensors and flow meters to monitor the temperature and flow parameters of the blast furnace cooling water system. Simultaneously, it analyzes and compares these data, historical records, and manually set parameters, and makes necessary adjustments to address undesirable conditions. This allows for adjustment of the inlet and outlet pipe diameters, reducing nominal pressure, lowering energy consumption, saving energy, and eliminating unnecessary waste caused by equipment travel. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a three-dimensional structural diagram of a novel online monitoring device for a cooling system according to one embodiment;

[0016] Figure 2 This is a front view structural diagram of a novel online monitoring device for a cooling system according to one embodiment;

[0017] Figure 3 This is a partial structural diagram of a novel online monitoring device for a cooling system according to one embodiment;

[0018] In the above figures, 1. Air vent sleeve, 2. Water inlet pipe, 3. Water outlet pipe, 4. Connecting flange, 5. Turbine flow meter, 6. Temperature display screen, 501. Fixed bracket, 502. Rotating shaft, 503. Flow turbine, 601. Temperature sensor, 602. Bearing, 603. Rotating connecting block, 604. Fixed connecting block, 605. LCD screen. Detailed Implementation

[0019] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0020] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0021] Example 1, such as Figure 1-3 As shown, a novel online monitoring device for a cooling system includes a tuyere sleeve 1. The tuyere sleeve 1 serves as the core carrier for blast furnace cooling, directly contacting the high-temperature furnace body. The tuyere sleeve 1, made of a high-temperature resistant alloy, carries a cooling water circulation channel through a sandwich structure. An inlet pipe 2 and an outlet pipe 3 are connected to the tuyere sleeve 1. The inlet pipe 2 delivers cooling water to the sandwich structure of the tuyere sleeve 1 and out through the outlet pipe 3, forming a closed-loop cooling circuit. Connecting flanges 4 are installed at the ends of the inlet pipe 2 and the outlet pipe 3, enabling quick connection and sealing of the pipes.

[0022] Turbine flow meters 5 are installed inside the inlet pipe 2 and outlet pipe 3. The turbine flow meters 5 monitor the cooling water flow rate in the inlet pipe 2 and outlet pipe 3 in real time. A temperature display screen 6 is installed on the side wall of the vent sleeve 1. The temperature display screen 6 displays the real-time water temperature inside the vent sleeve 1, providing visual monitoring. The temperature display screen 6 includes a temperature probe 601. One end of the temperature probe 601 is inserted into the vent sleeve 1, and the other end is equipped with a bearing 602. The temperature probe 601 is inserted into the vent sleeve 1 to measure the temperature. The bearing 602 is connected to a rotating connecting block 603, which is connected to a fixed connecting block 604. An LCD screen 605 is installed on the fixed connecting block 604. The bearing 602 supports the horizontal rotation adjustment of the LCD screen 605, and the connection between the rotating connecting block 603 and the fixed connecting block 604 supports the vertical rotation adjustment of the LCD screen 605.

[0023] The specific design of the aforementioned key components will be discussed in detail below:

[0024] The turbine flow meter 5 includes a meter head and a rotating shaft 502. The meter head can display flow data. The rotating shaft 502 is connected to the inner wall of the inlet pipe 2 and the outlet pipe 3 through a fixed bracket 501. A flow turbine 503 is provided on the rotating shaft 502.

[0025] The temperature probe 601 is made of nickel-based alloy and is inserted into the air vent sleeve 1 as the temperature measuring end. The temperature measuring end contains a temperature sensor, which is an embedded digital temperature sensor, a PT1000 platinum resistance thermometer, with an accuracy of ±0.1℃. The rotating connecting block 603 is shaft-connected to the fixed connecting block 604. The bearing 602 is a waterproof stainless steel miniature bearing 602 with embedded sealing grease and an IP67 protection rating. The rotating connecting block 603 is hinged to the fixed connecting block 604 via a universal joint, supporting the rotation adjustment of the display screen.

[0026] The connecting flange 4 is a 304 stainless steel flange, and a sealing gasket is embedded in the connecting flange 4. The connecting flange 4 is used to achieve a fixed connection and prevent leakage.

[0027] The fixed bracket 501 is a 316 stainless steel support frame. The fixed bracket 501 is fixed to the pipe walls of the inlet pipe 2 and the outlet pipe 3 by laser welding. The surface of the flow turbine 503 is coated with a polytetrafluoroethylene wear-resistant coating to prevent the adhesion of impurities such as scale and rust, and reduce the maintenance frequency. The rotating shaft 502 adopts a ceramic bearing 602, which has a long service life.

[0028] The turbine flow meter 5 is connected to the PLC via a data cable. It uses a dual-channel redundant transmission of 4-20mA analog signal and RS485 digital signal, providing strong anti-interference capabilities. Flow data is sampled 10 times per second, and the PLC's real-time analysis cycle is ≤100ms. The PLC calculates the pressure difference (ΔP=K·Q2) in real time based on the flow data and automatically adjusts the variable frequency pump speed to maintain the target flow rate within ±2% error. Combining historical data, it learns the blast furnace operating patterns and automatically reduces the water flow rate by 10-15% during low-load periods at night, achieving energy savings of >12%.

[0029] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0030] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A novel cooling system online monitoring device, characterized in that, The air port sleeve is provided with an inlet pipe and an outlet pipe, and the ends of the inlet pipe and the outlet pipe are provided with connecting flanges.

2. The online monitoring device of a novel cooling system according to claim 1, characterized in that, The turbine flowmeter comprises a meter head and a rotating shaft, the rotating shaft is connected to the inner walls of the inlet pipe and the outlet pipe through a fixing support, and the rotating shaft is provided with a flow turbine.

3. The online monitoring device of a novel cooling system according to claim 1, characterized in that, The temperature sensing probe is made of nickel-based alloy material, and the inserted part in the air port sleeve is a temperature measuring end.

4. The online monitoring device of a novel cooling system according to claim 1, characterized in that, The connecting flange is made of 304 stainless steel, and the connecting flange is inlaid with a sealing washer.

5. The online monitoring device of a novel cooling system according to claim 2, characterized in that, The fixing support is a 316 stainless steel support frame, the fixing support and the pipe walls of the inlet pipe and the outlet pipe are fixed by laser welding, the surface of the flow turbine is provided with a polytetrafluoroethylene wear-resistant coating, and the rotating shaft is made of ceramic bearing.

6. The novel cooling system online monitoring device according to claim 1, characterized in that, The turbine flowmeter is connected to the PLC through a data line.

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