Corncob stack temperature monitoring system

Abstract

The utility model discloses a corncob stack temperature monitoring system, which relates to the technical field of temperature monitoring and comprises a horizontal support, a plurality of distributed optical fiber temperature measurement cables are fixedly connected to the horizontal support in an array mode, and the fixed ends of the distributed optical fiber temperature measurement cables are connected with a data acquisition module. The free end of the distributed optical fiber temperature measurement cable is vertically downward and extends to the bottom of the material stack, and the data acquisition module is in communication connection with the monitoring terminal; the distributed optical fiber temperature measurement cable comprises a temperature measurement optical fiber, the outer side of the temperature measurement optical fiber is coated with a buffer layer, the outer side of the buffer layer is wound with a spiral metal framework, and the outer side of the spiral metal framework is coated with a wear-resistant anticorrosive layer. The corncob stack temperature monitoring system can realize real-time, comprehensive and continuous monitoring of the internal temperature of the corncob stack.

Description

Technical Field

[0001] This utility model relates to the field of temperature monitoring technology, specifically a corn cob stack temperature monitoring system. Background Technology

[0002] Corn cobs, used as a raw material for xylose production, are prone to spontaneous combustion during stacking and storage due to factors such as microbial fermentation and oxidation. Therefore, temperature monitoring of corn cob stacks is necessary, currently relying primarily on the following two methods:

[0003] Manual inspection: This method involves regularly inspecting and measuring the temperature of the corn cob stacks by hand. However, manual inspection has significant real-time limitations, failing to achieve continuous 24-hour monitoring and making it difficult to quickly detect sudden temperature anomalies, thus leading to potential quality risks and safety hazards.

[0004] Point-based temperature sensors: This method can only acquire temperature data at local points. However, corn cob stacks, as porous media, exhibit significant non-uniformity in their internal temperature field distribution, especially in areas where temperature gradients easily form due to variations in stack height and density. Point sensors cannot cover the temperature distribution throughout the entire stack space, and are highly susceptible to missing localized high-temperature areas due to monitoring blind spots.

[0005] Therefore, it is necessary to propose a corn cob stack temperature monitoring system to solve the above problems. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] The purpose of this invention is to provide a corn cob stack temperature monitoring system that can continuously and comprehensively monitor the internal temperature of the stack in real time, so as to solve the problems mentioned in the background art.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model is implemented through the following technical solution: a corn cob stack temperature monitoring system, including a horizontal support, on which multiple distributed optical fiber temperature measuring cables are fixedly connected in an array, the fixed end of the distributed optical fiber temperature measuring cables is connected to a data acquisition module, the free end of the distributed optical fiber temperature measuring cables is vertically downward and extends to the bottom of the material stack, and the data acquisition module is communicatively connected to a monitoring terminal.

[0010] The distributed optical fiber temperature measurement cable includes a temperature measurement optical fiber, the outer side of which is covered with a buffer layer, the outer side of which is wound with a spiral metal skeleton, and the outer side of which is covered with a wear-resistant and corrosion-resistant layer.

[0011] Preferably, the monitoring terminal is connected to a wireless gateway, and the data acquisition module includes a wireless communication module, with multiple data acquisition modules wirelessly connected to the wireless gateway.

[0012] Preferably, it also includes an audible and visual alarm, which is electrically connected to the monitoring terminal.

[0013] Preferably, the length of the distributed optical fiber temperature measurement cable is less than the distance between the horizontal support and the ground.

[0014] Preferably, the spacing between two adjacent distributed optical fiber temperature measurement cables is 2m.

[0015] Preferably, the distributed optical fiber temperature measurement cable is fixedly connected to the horizontal support via a fixing base. The fixing base includes a pressure plate and a support that are fixedly connected by fixing bolts. The pressure plate and the support are each provided with elastic pressure blocks in sequence.

[0016] Preferably, an arc-shaped limiting groove is provided on one side of each of the two elastic blocks.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, this utility model provides a corn cob stack temperature monitoring system, which has the following beneficial effects:

[0019] 1. This corn cob stack temperature monitoring system, through the setting of multiple data acquisition modules and distributed fiber optic temperature measurement cables, can achieve real-time, comprehensive and continuous monitoring of the internal temperature of the material stack, and promptly detect temperature anomalies.

[0020] 2. This corn cob stack temperature monitoring system, through the triple protection of a spiral metal frame, a buffer layer, and a wear-resistant and corrosion-resistant layer, effectively prevents the distributed fiber optic temperature measurement cable from being damaged by squeezing, friction, corrosion, etc. in the material stacking environment, significantly extending the service life of the cable and reducing replacement and maintenance costs.

[0021] 3. This corn cob stack temperature monitoring system adopts wireless communication technology. There is no need to lay a wired network between the data acquisition module and the wireless gateway, which greatly saves wiring and labor costs, simplifies the installation process, and improves the flexibility and convenience of deployment.

[0022] 4. This corn cob stack temperature monitoring system, through the use of a fixed base, pressure plate and elastic pressure block, can stably clamp the distributed optical fiber temperature measurement cable, effectively avoiding friction between the fixed end and the horizontal support, thereby reducing wear and ensuring the accuracy of measurement data and the reliability of the system. Attached Figure Description

[0023] Figure 1 This is a three-dimensional schematic diagram of the structure of this utility model;

[0024] Figure 2 This is a front view schematic diagram of the distributed optical fiber temperature measurement cable of this utility model;

[0025] Figure 3 This is a cross-sectional schematic diagram of the distributed optical fiber temperature measurement cable of this utility model.

[0026] In the diagram: 1. Data acquisition module; 2. Horizontal support; 3. Distributed fiber optic temperature measurement cable; 4. Material stack; 5. Fixing base; 6. Fixing bolt; 7. Pressure plate; 8. Elastic pressure block; 9. Support; 10. Wear-resistant and corrosion-resistant layer; 11. Spiral metal frame; 12. Buffer layer; 13. Temperature measurement fiber optic cable. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0028] Please see Figure 1-3 As shown, a corn cob stack temperature monitoring system includes a horizontal support 2. Multiple distributed optical fiber temperature measuring cables 3 are fixedly arrayed on the horizontal support 2. A data acquisition module 1 is connected to the fixed end of each distributed optical fiber temperature measuring cable 3. The free ends of the distributed optical fiber temperature measuring cables 3 extend vertically downwards to the bottom of the material stack 4. The data acquisition module 1 is communicatively connected to a monitoring terminal. Each distributed optical fiber temperature measuring cable 3 includes a temperature measuring optical fiber 13, with a buffer layer 12 covering the outside of the temperature measuring optical fiber 13. A spiral metal skeleton 11 is wound around the outside of the buffer layer 12, and a wear-resistant and corrosion-resistant layer 10 covers the outside of the spiral metal skeleton 11. Preferably, the spacing between two adjacent distributed optical fiber temperature measuring cables 3 is 2 meters.

[0029] During temperature monitoring, the free end of the distributed fiber optic temperature sensing cable 3 is vertically embedded into the material stack 4. The data acquisition module 1, in conjunction with the temperature sensing fiber 13, utilizes the Raman scattering effect of the fiber to achieve continuous spatial temperature measurement along a single cable. Simultaneously, multiple data acquisition modules 1 transmit the temperature measurement data to a monitoring terminal for unified monitoring. Through the combined action of multiple data acquisition modules 1 and the distributed fiber optic temperature sensing cable 3, real-time and continuous monitoring of the internal temperature of the material stack 4 is achieved.

[0030] By setting a spiral metal skeleton 11 to withstand external pressure, the cable deformation or breakage caused by the self-weight of stacking or mechanical operation is avoided, thus protecting the temperature measuring optical fiber 13. At the same time, the buffer layer 12 fills the gap between the spiral metal skeleton 11 and the temperature measuring optical fiber 13 to prevent them from rubbing against each other. The buffer layer 12 can also buffer the impact on the distributed optical fiber temperature measuring cable 3. By setting a wear-resistant and anti-corrosion layer 10, it is prevented from being damaged by mechanical forces such as friction and dragging during use, and it can also resist the corrosion of dust, moisture and chemicals in the stacking environment.

[0031] Specifically, the data acquisition module 1 is an existing module that emits laser pulses to the temperature-sensing fiber 13, receives the Raman scattered light (including Stokes light and anti-Stokes light) generated in the fiber, uses the linear relationship between the intensity ratio of the two light sources and temperature, combines optical time-domain reflectometry to locate the spatial position, and extracts the temperature information after signal processing, thereby realizing continuous temperature monitoring of the temperature-sensing fiber 13.

[0032] In some embodiments, the monitoring terminal is connected to a wireless gateway, and the data acquisition module 1 includes a wireless communication module. Multiple data acquisition modules 1 are wirelessly connected to the wireless gateway. The wireless gateway receives monitoring data from each data acquisition module 1 node and forwards this data to the monitoring terminal. The monitoring terminal is responsible for receiving, processing, storing, and analyzing the data from the wireless gateway. Each data acquisition module 1 node is assigned a unique address, which is associated with the node's physical location, enabling the system to determine the actual location of the data acquisition module 1 based on the address information. The monitoring terminal also provides a user interface through which users can view monitoring data in real time, thereby identifying the specific location of high-temperature areas. The monitoring terminal can be a local computer, a server, or a cloud platform. By establishing a wireless connection between the data acquisition module 1 and the wireless gateway, there is no need to lay out a complex wired network, saving significant wiring and labor costs.

[0033] It also includes an audible and visual alarm, which is electrically connected to the monitoring terminal. When the temperature monitored by data acquisition module 1 exceeds a predetermined threshold, the monitoring terminal controls the audible and visual alarm to be activated to prompt staff to perform a turning operation.

[0034] Specifically, the length of the distributed fiber optic temperature sensing cable 3 is less than the distance between the horizontal support 2 and the ground. This avoids friction between the end of the distributed fiber optic temperature sensing cable 3 and the ground, and also reduces the impact of ground temperature on temperature monitoring.

[0035] In some embodiments, the distributed fiber optic temperature measuring cable 3 is fixedly connected to the horizontal support 2 via a fixing base 5. The fixing base 5 includes a pressure plate 7 and a support 9 fixedly connected by fixing bolts 6. Elastic pressure blocks 8 are sequentially arranged adjacent to each other on the pressure plate 7 and the support 9. The fixing base 5 and the pressure plate 7 work together to clamp and fix the distributed fiber optic temperature measuring cable 3, making the fixation of the distributed fiber optic temperature measuring cable 3 more secure. Simultaneously, the use of two elastic pressure blocks 8 to clamp and fix the distributed fiber optic temperature measuring cable 3 prevents its fixed end from rubbing against the horizontal support 2 and causing wear.

[0036] Specifically, each of the two elastic pressure blocks 8 has an arc-shaped limiting groove on one of its adjacent sides. The arc-shaped limiting groove limits the distributed optical fiber temperature measuring cable 3, increases the contact area between the elastic pressure block 8 and the distributed optical fiber temperature measuring cable 3, thereby increasing the friction and ensuring that the distributed optical fiber temperature measuring cable 3 is fixed and stable.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A corn cob stack temperature monitoring system, characterized in that: Includes a horizontal support (2), on which multiple distributed optical fiber temperature measuring cables (3) are fixedly connected in an array. The fixed end of the distributed optical fiber temperature measuring cable (3) is connected to a data acquisition module (1). The free end of the distributed optical fiber temperature measuring cable (3) extends vertically downward to the bottom of the material stack (4). The data acquisition module (1) is connected to a monitoring terminal. The distributed optical fiber temperature measurement cable (3) includes a temperature measurement optical fiber (13), the outer side of which is covered with a buffer layer (12), the outer side of which is wound with a spiral metal skeleton (11), and the outer side of which is covered with a wear-resistant and corrosion-resistant layer (10).

2. The corn cob stack temperature monitoring system according to claim 1, characterized in that: The monitoring terminal is connected to a wireless gateway, and the data acquisition module (1) includes a wireless communication module. All of the data acquisition modules (1) are wirelessly connected to the wireless gateway.

3. The corn cob stack temperature monitoring system according to claim 1, characterized in that: It also includes an audible and visual alarm, which is electrically connected to the monitoring terminal.

4. The corn cob stack temperature monitoring system according to claim 1, characterized in that: The length of the distributed optical fiber temperature measurement cable (3) is less than the distance between the horizontal support (2) and the ground.

5. The corn cob stack temperature monitoring system according to claim 1, characterized in that: The distance between two adjacent distributed optical fiber temperature measurement cables (3) is 2m.

6. The corn cob stack temperature monitoring system according to claim 1, characterized in that: The distributed optical fiber temperature measurement cable (3) is fixedly connected to the horizontal support (2) through the fixed seat (5). The fixed seat (5) includes a pressure plate (7) and a support (9) fixedly connected by a fixing bolt (6). The pressure plate (7) and the support (9) are each provided with an elastic pressure block (8) in sequence.

7. A corn cob stack temperature monitoring system according to claim 6, characterized in that: Both of the two elastic blocks (8) have an arc-shaped limiting groove on their adjacent sides.

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