Self-adaptive calibration boiler flow meter sensing structure

Abstract

The utility model relates to the technical field of boiler flow detection devices, in particular to a self-adaptive calibration boiler flow instrument sensing structure which comprises a boiler main body, a liquid inlet pipe is fixedly installed on the top of the boiler main body, a first valve is fixedly installed on the liquid inlet pipe, and an end flange of the liquid inlet pipe is connected with a thermal insulation pipe. A heat dissipation pipe is in flange connection with the end of the heat insulation pipe, a plurality of cooling fins are fixedly installed on the annular side face of the heat dissipation pipe, a calibrator is in flange connection with the end of the heat dissipation pipe, a data processing host is arranged on one side of the boiler body, the calibrator comprises a conduction pipe in flange connection with the heat dissipation pipe, and a second valve is fixedly installed at the end of the conduction pipe. A conveying pipe is fixedly installed at the end of the second valve, a flow sensor is arranged in the communicating pipe, and a metering pump used for conveying standard flow is arranged between the conveying pipe and the communicating pipe. The utility model can carry out thermal insulation protection operation, and is not easy to damage due to temperature influence.

Description

Technical Field

[0001] This utility model relates to the technical field of boiler flow detection devices, and more specifically, to a boiler flow meter sensing structure with adaptive calibration. Background Technology

[0002] In industrial production, boilers, as crucial energy conversion equipment, require precise measurement of their internal fluid flow rates to ensure safe and stable operation and improve energy efficiency. Existing boiler flow meter sensing structures are susceptible to degradation over long-term use due to factors such as changes in media characteristics (e.g., fluctuations in temperature, pressure, and viscosity), pipeline vibration, and aging of instrument components. To ensure accuracy, periodic manual calibration is typically required. However, this method is not only resource-intensive but also difficult to precisely control, potentially leading to significant measurement errors between calibrations. This approach fails to meet the modern industrial demand for high-precision, real-time boiler flow rate measurement.

[0003] Patent CN118583258A discloses an adaptive calibration system and method for flow meters, applied in the field of flow meter calibration technology. The system comprises a medium source connected to one end of a flow pump, the other end of which is connected to one end of a standard flow meter with flow control. The other end of the standard flow meter with flow control is connected to the flow meter being calibrated. The medium source flows sequentially through the flow pump, the standard flow meter with flow control, and the flow meter being calibrated. The flow pump controls and adjusts the flow rate output of the medium source. The standard flow meter with flow control is used for self-regulating flow adjustment. A flow control device is used to control and adjust the flow rate of the flow meter being calibrated. This application allows for the correct installation of the flow meter to be calibrated into the flow meter calibration system, enabling adaptive, rapid, and accurate calibration. Furthermore, it can test different flow meters within different ranges.

[0004] While this technical solution offers advantages such as adaptive, rapid, and accurate calibration of the flow meter being calibrated, most current adaptive calibration structures for boiler flow meter sensors are directly fixed to the boiler. Due to the high internal temperature of the boiler and heat transfer from pipes and other components, the boiler's internal temperature can be transferred to the calibration structure. High-temperature transfer, in particular, can damage internal components of the calibration structure, affecting its normal operation. Therefore, we propose an adaptive calibration structure for boiler flow meter sensors. Utility Model Content

[0005] The purpose of this invention is to provide an adaptively calibrated boiler flow meter sensing structure to address the deficiencies mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An adaptive calibration boiler flow meter sensing structure includes a boiler body, an inlet pipe fixedly installed on the top of the boiler body, a first valve fixedly installed on the inlet pipe, a heat insulation pipe for isolating temperature transmission connected to the end flange of the inlet pipe, a heat dissipation pipe for heat dissipation connected to the end flange of the heat insulation pipe, a plurality of heat dissipation fins arranged in a ring at equal intervals fixedly installed on the annular side of the heat dissipation pipe, a calibrator connected to the end flange of the heat dissipation pipe, and a data processing host provided on one side of the boiler body.

[0008] Preferably, the calibrator includes a conductive pipe connected to the heat dissipation pipe by a flange, a second valve is fixedly installed at the end of the conductive pipe, a delivery pipe is fixedly installed at the end of the second valve, a flow sensor is provided inside the conductive pipe, and a metering pump for delivering a standard flow rate is provided between the delivery pipe and the conductive pipe.

[0009] This setting allows the use of a metering pump to deliver a fixed amount of stock solution, achieving the effect of parameter calibration.

[0010] Preferably, a pad is fixedly installed on the guide tube, and the flow sensor is plugged into both the pad and the guide tube;

[0011] Preferably, a fixing bracket is fixedly installed at the end of the flow sensor, and the fixing bracket is detachably installed on the top surface of the pad;

[0012] Preferably, a sealing ring is fitted onto the flow sensor, and the fixing support presses the sealing ring tightly against the top surface of the pad;

[0013] The above three settings facilitate the fixed installation and disassembly / replacement of the flow sensor, while the sealing ring ensures a tight seal.

[0014] Preferably, the inlet end of the metering pump is connected to the delivery pipe via a suction pipe, and the outlet end of the metering pump is connected to the connecting pipe via a replenishment pipe.

[0015] Preferably, a third valve is fixedly installed on the suction tube, and a support frame is fixedly installed at the bottom of the data processing host.

[0016] Preferably, a fixing seat is fixedly installed at the bottom of the support frame, and the fixing seat is fixedly installed on the external frame.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This utility model effectively isolates the high temperature inside the boiler body from the calibrator by setting up a combination structure of heat insulation pipe, heat dissipation pipe and heat dissipation fins, and quickly dissipates the heat, avoiding damage to the internal components of the calibrator due to high temperature, thus achieving temperature protection for the calibrator, extending the service life of the calibrator and ensuring its normal and stable operation.

[0019] 2. This utility model, by placing a metering pump between the delivery pipe and the conduction pipe, can deliver a quantitative amount of raw liquid. In conjunction with the data processing host, it processes the data and calibrates the flow sensor, realizing the adaptive calibration function of the calibrator. This achieves the effect of improving the sensing and measurement accuracy of the boiler flow meter and ensuring the accuracy of the measurement results.

[0020] 3. This utility model, through the design of components such as pads, fixed supports, and sealing rings, facilitates the fixed installation and disassembly / replacement of the flow sensor, while ensuring sealing performance. This achieves the goals of convenient installation and maintenance of the flow sensor and system sealing performance, thereby reducing maintenance costs and improving equipment reliability. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a partial structural schematic diagram of the present invention;

[0023] Figure 3 This is a schematic diagram of the heat dissipation pipe of this utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the calibrator of this utility model;

[0025] The meanings of the labels in the diagram are as follows:

[0026] 1. Boiler body; 10. Liquid inlet pipe; 11. First valve; 12. Insulation pipe; 13. Heat dissipation pipe; 131. Heat dissipation fins;

[0027] 2. Calibrator; 20. Delivery pipe; 21. Second valve; 22. Conductor pipe; 23. Pad; 24. Flow sensor; 241. Sealing ring; 242. Fixed support; 25. Metering pump; 26. Suction pipe; 261. Third valve; 27. Replenishment pipe;

[0028] 3. Data processing host; 30. Support frame; 31. Fixture. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figures 1-4 This utility model provides a technical solution: an adaptive calibration boiler flow meter sensing structure, including a boiler body 1, an inlet pipe 10 fixedly installed on the top of the boiler body 1, a first valve 11 fixedly installed on the inlet pipe 10, an insulation pipe 12 for isolating temperature transmission connected to the end flange of the inlet pipe 10, a heat dissipation pipe 13 for heat dissipation connected to the end flange of the insulation pipe 12, a plurality of heat dissipation fins 131 arranged in a ring at equal intervals fixedly installed on the annular side of the heat dissipation pipe 13, a calibrator 2 connected to the end flange of the heat dissipation pipe 13, and a data processing host 3 provided on one side of the boiler body 1, making it difficult for the high temperature inside the boiler body 1 to be transferred to the calibrator 2, effectively isolating heat, avoiding damage to the internal components of the calibrator 2 due to high temperature, extending the service life of the calibrator 2, and ensuring the stability of the calibration work.

[0031] like Figure 2 As shown, the calibrator 2 includes a connecting pipe 22 connected to the heat dissipation pipe 13 by a flange. A second valve 21 is fixedly installed at the end of the connecting pipe 22, and a delivery pipe 20 is fixedly installed at the end of the second valve 21. A flow sensor 24 is installed inside the connecting pipe 22. A metering pump 25 for delivering a standard flow rate is installed between the delivery pipe 20 and the connecting pipe 22, so that the metering pump 25 can deliver a quantitative amount of raw liquid to the connecting pipe 22. In conjunction with the flow sensor 24, the calibration work is completed, realizing the adaptive calibration of the flow measurement parameters by the calibrator 2, and improving the accuracy of boiler flow measurement.

[0032] like Figure 4 As shown, a pad 23 is fixedly installed on the conduit 22. The flow sensor 24 is plugged into both the pad 23 and the conduit 22. A fixed support 242 is fixedly installed at the end of the flow sensor 24. The fixed support 242 is detachably installed on the top surface of the pad 23. A sealing ring 241 is fitted on the flow sensor 24. The fixed support 242 presses the sealing ring 241 tightly onto the top surface of the pad 23, so that the flow sensor 24 and the conduit 22 form a detachable plug-in structure, which facilitates the installation and replacement of the flow sensor 24. At the same time, the sealing ring 241 ensures the sealing of the connection and prevents fluid leakage from affecting the measurement and calibration work.

[0033] like Figure 4As shown, the inlet end of the metering pump 25 is connected to the delivery pipe 20 via the suction pipe 26, and the outlet end of the metering pump 25 is connected to the guide pipe 22 via the replenishment pipe 27, enabling the metering pump 25 to smoothly extract and deliver the raw liquid required for calibration, ensuring the smooth progress of the calibration process; a third valve 261 is fixedly installed on the suction pipe 26, which, in conjunction with the third valve 261 on the suction pipe 26, allows for flexible control of the raw liquid delivery, facilitating operation and maintenance.

[0034] It is worth noting that a support frame 30 is fixedly installed at the bottom of the data processing host 3, and a fixing seat 31 is fixedly installed at the bottom of the support frame 30. The fixing seat 31 is fixedly installed on the external frame, so that the data processing host 3 is stably installed on the external frame, ensuring the stability of the data processing host 3 during operation and ensuring that it can reliably receive and process the data transmitted by the calibrator 2.

[0035] It is worth noting that in the flow measurement stage, the flow sensor 24 detects the flow information of the medium in real time and converts the collected flow data into electrical signals or other transmittable signal forms, which are then transmitted to the data processing host 3. After receiving the signal from the flow sensor 24, the data processing host 3 processes and analyzes the data, converting it into intuitive flow values ​​for display and subsequent control operations.

[0036] The automatic calibration process relies on the coordinated operation of the metering pump 25 and the data processing host 3. The calibration algorithm built into the data processing host 3 determines whether calibration is required based on preset calibration cycles or detected flow measurement errors. When the calibration conditions are met, the data processing host 3 controls the third valve 261 to open. At this time, the metering pump 25 operates, delivering a stable standard flow rate, which enters the flow sensor 24 through the supplementary pipe 27 and the connecting pipe 22 and is further detected by the flow sensor 24. The standard flow rate can then continue to enter the boiler body 1. After detecting the incoming standard flow rate, the flow sensor 24 transmits the collected standard flow rate data to the data processing host 3. The data processing host 3 compares this data with the preset standard value, calculates the difference between the two, and then automatically calculates the calibration parameters according to the calibration algorithm. The calibration parameters are then fed back to the flow sensor 24 to calibrate the flow sensor 24, thereby correcting the measurement error of the flow sensor 24, ensuring its measurement accuracy, and achieving the effect of adaptive calibration.

[0037] Finally, it should be noted that the metering pump 25, the third valve 261, the data processing host 3, and the flow sensor 24 involved in this utility model are all general standard parts or parts known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods. In the spare parts of this device, all the above-mentioned electrical components, which refer to power elements, electrical components, and the matching controller and power supply, are connected by wires. The specific connection methods should refer to the working principle of this utility model. The electrical connections between each electrical component are completed in the order of operation. The detailed connection methods are all technologies known in the art.

[0038] When using the adaptive calibration boiler flow meter sensing structure of this utility model, firstly, the second valve 21 and the first valve 11 are opened, and the fluid enters the boiler body 1 through the delivery pipe 20, the conduction pipe 22, the heat dissipation pipe 13, the heat insulation pipe 12 and the liquid inlet pipe 10. The flow sensor 24 detects the fluid flow rate in the conduction pipe 22 in real time. After the corresponding amount of raw liquid is delivered, the second valve 21 and the first valve 11 are closed. At this time, the heat insulation pipe 12 isolates the temperature on the liquid inlet pipe 10 from being transmitted to the calibrator 2. The heat dissipation pipe 13 and its heat dissipation fins 131 can dissipate the temperature transmitted to the heat dissipation pipe 13, ensuring the stable operation of the calibrator 2.

[0039] Since the flow sensor 24 detects the fluid flow rate in the conduit 22 in real time, it converts the flow data into a signal and transmits it to the data processing host 3. The data processing host 3 processes and analyzes the signal and converts it into an intuitive flow value.

[0040] When the calibration cycle preset by the built-in calibration algorithm of the data processing host 3 is reached, or when the flow measurement error of the flow sensor 24 is detected to exceed the threshold, (the error detection module in the data processing host 3 compares the digital signal transmitted from the flow sensor 24 through the signal processing module with the standard flow-electrical signal correspondence stored in the data storage module to calculate the error value of the current measurement signal) triggers the automatic calibration program. The data processing host 3 controls the third valve 261 on the suction pipe 26 to open, the metering pump 25 starts, and the quantitative original liquid corresponding to the error value is drawn from the delivery pipe 20 through the suction pipe 26 to be transported to the conduction pipe 22 through the replenishment pipe 27 to form the standard flow. The flow sensor 24 detects the standard flow and transmits the data to the data processing host 3. The data processing host 3 compares the standard value with the difference, obtains the calibration parameters according to the calibration algorithm, and feeds them back to the flow sensor 24 to complete the calibration and ensure measurement accuracy.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A self-adapting calibrated boiler flow meter sensor structure, comprising a boiler body (1), characterized in that: The top of the boiler body (1) is fixedly installed with a liquid inlet pipe (10), the first valve (11) is fixedly installed on the liquid inlet pipe (10), the end flange of the liquid inlet pipe (10) is connected with a temperature insulation pipe (12) for isolating temperature transmission, the end flange of the temperature insulation pipe (12) is connected with a heat dissipation pipe (13) for heat dissipation, a plurality of heat dissipation fins (131) are fixedly installed on the annular side surface of the heat dissipation pipe (13) in a ring shape and equidistant arrangement, the end flange of the heat dissipation pipe (13) is connected with a calibrator (2), and one side of the boiler body (1) is provided with a data processing host (3).

2. The self-adapting calibrated boiler flow meter sensing structure of claim 1, wherein: The calibrator (2) includes a through pipe (22) which is flange-connected with the heat dissipation pipe (13), the second valve (21) is fixedly installed at the end of the through pipe (22), the conveying pipe (20) is fixedly installed at the end of the second valve (21), the flow sensor (24) is arranged in the through pipe (22), and the metering pump (25) for conveying standard flow is arranged between the conveying pipe (20) and the through pipe (22).

3. The self-calibrating boiler flow instrument sensor structure of claim 2, wherein: The gasket (23) is fixedly installed on the through pipe (22), and the flow sensor (24) is inserted and matched with the gasket (23) and the through pipe (22).

4. The self-calibrating boiler flow instrument sensor structure of claim 3, wherein: The fixed support (242) is fixedly installed at the end of the flow sensor (24), and the fixed support (242) is detachably installed on the top surface of the gasket (23).

5. The self-calibrating boiler flow instrument sensor structure of claim 4, wherein: The sealing ring (241) is sleeved on the flow sensor (24), and the fixed support (242) tightly presses the sealing ring (241) on the top surface of the gasket (23).

6. The self-calibrating boiler flow meter sensor structure of claim 5, wherein: The suction pipe (26) is connected in communication between the liquid inlet end of the metering pump (25) and the conveying pipe (20), and the supplement pipe (27) is connected in communication between the liquid outlet end of the metering pump (25) and the through pipe (22).

7. The self-calibrating boiler flow instrument sensor structure of claim 6, wherein: The third valve (261) is fixedly installed on the suction pipe (26), and the support frame (30) is fixedly installed at the bottom of the data processing host (3).

8. The self-calibrating boiler flow meter sensor structure of claim 7, wherein: The fixed seat (31) is fixedly installed at the bottom of the support frame (30), and the fixed seat (31) is fixedly installed on the outer frame.

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