CN222747837U - A high-efficient quick intelligent detection system that leaks for flue - Google Patents

Abstract

The utility model discloses an efficient and fast intelligent leakage detection system for a flue, comprising a temperature measuring component and a PLC controller. The temperature measuring component comprises a smoke inlet pipe, a smoke return pipe, a connecting pipe and a temperature detection probe. The smoke inlet pipe and the smoke return pipe are arranged in a mirror image. The upper end and the lower end of the smoke inlet pipe are both arranged as a horizontal pipe. The two horizontal pipes are connected by an inclined pipe arranged obliquely. The smoke inlet of the smoke inlet pipe and the smoke return of the smoke return pipe are both arranged in a flue body. The smoke outlet of the smoke inlet pipe and the smoke inlet of the smoke return pipe are both arranged outside the flue body. The smoke inlet of the smoke inlet pipe is arranged on the leeward side of a flue gas heat exchanger. One end of the connecting pipe is connected to the smoke outlet of the smoke inlet pipe, and the other end of the connecting pipe is connected to the smoke inlet of the smoke return pipe. The connecting pipe is connected to an assembly pipe. The temperature detection probe can be detachably installed in the assembly pipe. The temperature measuring end of the temperature detection probe extends into the connecting pipe. The temperature detection probe is electrically connected to a signal input end of the PLC controller through a wire.

Description

A high-efficient quick intelligent detection system that leaks for flue

Technical Field

The utility model relates to the technical field of flue leakage detection, in particular to a high-efficiency rapid intelligent leakage detection system for a flue.

Background

The Chinese patent with publication number of CN216925292U discloses a leakage detection device of a flue gas heat exchanger, which consists of a plurality of flue gas leakage probe rods and a controller. The flue gas leakage probe rod is internally provided with a plurality of temperature sensor probes, and the controller is arranged outside the flue gas and connected with the temperature sensors and processes detected temperature signals. According to the leakage detection device for the flue gas heat exchanger, the leakage condition of the flue gas heat exchanger can be detected rapidly and effectively by detecting the temperature of the flue gas of the tail flue of the flue gas heat exchanger.

However, the device has the following defects in actual use:

For example, when the temperature sensor probe is damaged and needs to be replaced, the temperature of the flue gas in the flue is high, so that the risk of scalding exists when the temperature sensor probe is replaced;

When the temperature sensor probe is replaced, smoke in the flue can leak from the mounting port, so that the environment is polluted.

Therefore, an intelligent detection system for efficient and rapid leakage of a flue is provided.

Disclosure of utility model

It is an object of the present utility model to provide an efficient and rapid leak intelligent detection system for a flue that solves or at least alleviates one or more of the above-identified problems and other problems of the prior art.

In order to achieve the above purpose, the main technical scheme adopted by the utility model comprises the following steps:

The utility model provides a high-efficient quick leak intelligent detection system for flue, includes temperature measurement subassembly and PLC controller, temperature measurement subassembly is including advancing the tobacco pipe, returning the tobacco pipe, connecting pipe, temperature detect probe, advance the tobacco pipe with it is mirror image setting to return the tobacco pipe, advance the upper end and the lower extreme of tobacco pipe and all set up to horizontal pipe, be linked together through the inclined tube that the slope set up between two horizontal pipes, advance the tobacco pipe advance the tobacco mouth with return the tobacco mouth of returning the tobacco pipe all sets up in the flue body, advance the tobacco mouth of tobacco pipe with the tobacco mouth of returning the tobacco pipe all sets up the outside of flue body, advance the tobacco mouth setting of tobacco pipe in the leeward side of flue gas heat exchanger, the one end of connecting pipe with advance the tobacco mouth of tobacco pipe and be linked together, the other end of connecting pipe with advance the tobacco mouth of returning the tobacco pipe and be linked together, the intercommunication has the dress piping on the connecting pipe, temperature detect probe demountable installation is in the dress, temperature detect probe's temperature measurement end stretches into in the flue, temperature detect through the wire with the signal input electric connection of PLC of controller.

According to the intelligent high-efficiency rapid leakage detection system for the flue, provided by the utility model, the temperature measuring assemblies are equidistantly arranged in the circumferential direction of the flue body and are not less than five groups.

According to the intelligent high-efficiency rapid leakage detection system for the flue, the outer wall of the smoke inlet pipe, the outer wall of the connecting pipe and the outer wall of the smoke return pipe are all wrapped with the heat insulation sleeve.

According to the intelligent high-efficiency rapid leakage detection system for the flue, the smoke inlet valve is arranged on the smoke inlet pipe, and the smoke return valve is arranged on the smoke return pipe.

According to the intelligent high-efficiency rapid leakage detection system for the flue, the inner wall of the assembling pipe is provided with the internal threads, and the temperature detection probe is fixedly arranged on the assembling pipe through the threads.

According to the intelligent high-efficiency rapid leakage detection system for the flue, the inclination angle of the smoke inlet pipe and the smoke return pipe is 120-150 degrees.

The utility model has at least the following beneficial effects:

According to the utility model, the temperature detection probe is arranged outside the flue body, the smoke inlet pipe, the smoke return pipe and the connecting pipe are matched, so that the smoke in the flue body after heat exchange of the smoke heat exchanger can be led into the connecting pipe, the temperature of the smoke after heat exchange is detected through the temperature detection probe arranged in the connecting pipe, when the temperature detection probe needs to be replaced, the smoke inlet valve and the smoke return valve are closed, the damaged temperature detection probe can be detached, a new temperature detection probe is arranged in the assembly pipe, then the smoke inlet valve and the smoke return valve are opened, detection is continued, the whole disassembly and assembly process can not cause the phenomena of scalding personnel and polluting the environment due to ash leakage, and the normal operation of other temperature measuring components can not be influenced during the replacement of the temperature detection probe.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:

FIG. 1 is a schematic diagram of a high efficiency, rapid leak intelligent detection system for a flue according to the present utility model;

FIG. 2 is a schematic cross-sectional view of the intelligent detection system for high-efficiency and rapid leakage in flue of the present utility model;

FIG. 3 is an enlarged schematic view of the portion A in FIG. 1;

Fig. 4 is a schematic block diagram of the circuit of the present utility model.

Reference numerals illustrate:

1. The flue comprises a flue body, a flue inlet pipe, a flue inlet valve, a flue return pipe, a flue return valve, a flue return pipe, a flue assembly pipe, a flue temperature detection probe, a flue guide wire, a flue gas heat exchanger, a PLC (programmable logic controller) and a DCS control system.

Detailed Description

The following detailed description of embodiments of the present application will be given with reference to the accompanying drawings and examples, by which the implementation process of how the present application can be applied to solve the technical problems and achieve the technical effects can be fully understood and implemented.

Referring to fig. 1 to 4, this embodiment provides a high-efficient quick leakage intelligent detection system for flue, including temperature measurement subassembly and PLC controller 9, temperature measurement subassembly is including advancing tobacco pipe 2, return tobacco pipe 3, connecting pipe 4, temperature detect probe 6, advance tobacco pipe 2 and return tobacco pipe 3 and be the mirror image setting, advance the upper end and the lower extreme of tobacco pipe 2 and all set up to horizontal pipe, be linked together through the inclined tube that inclines to set up between two horizontal pipes, advance the mouth that advances of tobacco pipe 2 and return the mouth that returns of tobacco pipe 3 and all set up in flue body 1, advance the mouth that goes out of tobacco pipe 2 and return the mouth that advances of tobacco pipe 3 all set up in flue body 1 outside, advance to install on the tobacco pipe 2 and advance cigarette valve 201, advance the mouth setting that returns on the tobacco pipe 3 and advance the tobacco pipe 2 and be in the leeward side of flue gas heat exchanger 8, the one end of connecting pipe 4 is linked together with the mouth that goes out of advancing of tobacco pipe 2, the other end and the mouth that returns 3 of connecting pipe 4 are linked together, it has dress piping 5 to communicate on connecting pipe 4, temperature detect probe 6 demountable installation is in 6, temperature detect 6 and go into the temperature detect probe 6 and go into the end 7 through temperature detect the temperature detector 6 and pass through temperature detect probe 7 in the electrical connection wire 7.

Specifically, in order to facilitate the flue gas to smoothly enter the flue gas inlet pipe 2 and return to the flue body 1 from the flue gas return pipe 3, the inclination angles of the flue gas inlet pipe 2 and the flue gas return pipe 3 are 120-150 degrees in the embodiment, and in order to ensure the detection precision, the temperature measuring assemblies are equidistantly arranged in the circumferential direction of the flue body 1 to be not less than five groups.

Specifically, in order to further improve the precision of detection, the outer wall of the smoke inlet pipe 2, the outer wall of the connecting pipe 4 and the outer wall of the smoke return pipe 3 are all wrapped with heat insulation sleeves, and the heat insulation sleeves are made of heat insulation rock wool.

In this embodiment, the inner wall of the fitting pipe 5 is provided with an internal thread, and the temperature detecting probe 6 is fixedly mounted on the fitting pipe 5 by the thread.

The PLC controller 9 can be a Siemens S7-300 series PLC controller.

In some embodiments, the PLC controller 9 may transmit the detected temperature to the DCS control system 10.

In order to facilitate understanding of the above technical solutions of the present utility model, the following describes in detail the working principle or operation manner of the present utility model in the actual process.

The working principle is that the temperature detection probe 6 is arranged outside the flue body 1, the smoke inlet pipe 2, the smoke return pipe 3 and the connecting pipe 4 which are matched with each other can guide the smoke after heat exchange of the smoke heat exchanger 8 in the flue body 1 into the connecting pipe 4, the temperature of the smoke after heat exchange is detected through the temperature detection probe 6 arranged in the connecting pipe 4, the detected signal is transmitted to the PLC 9, the PLC 9 obtains a temperature value after processing according to the transmitted temperature signal, if the detected temperature value is greater than a set threshold value, the smoke heat exchanger 8 is considered to have the leakage problem, and further, a person is reminded to overhaul, when the temperature detection probe 6 needs to be replaced, the smoke inlet valve 201 and the smoke return valve 301 are closed, the damaged temperature detection probe 6 can be detached, the new temperature detection probe 6 is arranged in the assembling pipe 5, then the smoke inlet valve 201 and the smoke return valve 301 are opened, the detection is continued, the whole disassembly process can not cause the phenomena of scalding and leaking smoke dust pollution to the environment, and the normal operation of other temperature measurement components can not be influenced during the replacement of the temperature detection probe 6.

While the foregoing description illustrates and describes the preferred embodiments of the present utility model, it is to be understood that the utility model is not limited to the forms disclosed herein, but is not to be construed as limited to other embodiments, and is capable of numerous other combinations, modifications and environments and is capable of changes or modifications within the scope of the inventive concept as described herein, either as a result of the foregoing teachings or as a result of the knowledge or technology in the relevant art. And that modifications and variations which do not depart from the spirit and scope of the utility model are intended to be within the scope of the appended claims.

Claims (6)

1. An efficient and fast intelligent leakage detection system for a flue, characterized in that it comprises a temperature measuring component and a PLC controller (9), the temperature measuring component comprises a smoke inlet pipe (2), a smoke return pipe (3), a connecting pipe (4), and a temperature detection probe (6), the smoke inlet pipe (2) and the smoke return pipe (3) are arranged in a mirror image, the upper end and the lower end of the smoke inlet pipe (2) are both arranged as a horizontal pipe, and the two horizontal pipes are connected by an inclined pipe arranged obliquely, the smoke inlet of the smoke inlet pipe (2) and the smoke return port of the smoke return pipe (3) are both arranged in the flue body (1), and the smoke outlet of the smoke inlet pipe (2) and the smoke inlet of the smoke return pipe (3) are both arranged The smoke inlet of the smoke inlet pipe (2) is arranged outside the smoke duct body (1), the smoke inlet of the smoke inlet pipe (2) is arranged on the leeward side of the smoke heat exchanger (8), one end of the connecting pipe (4) is connected to the smoke outlet of the smoke inlet pipe (2), and the other end of the connecting pipe (4) is connected to the smoke inlet of the smoke return pipe (3), the connecting pipe (4) is connected to an assembly pipe (5), the temperature detection probe (6) is detachably installed in the assembly pipe (5), the temperature measuring end of the temperature detection probe (6) extends into the connecting pipe (4), and the temperature detection probe (6) is electrically connected to the signal input end of the PLC controller (9) through a wire (7). 2. An efficient and rapid intelligent leakage detection system for flues according to claim 1, characterized in that: the temperature measuring components are arranged in no less than five groups at equal intervals along the circumference of the flue body (1). 3. According to claim 2, a high-efficiency and fast intelligent leakage detection system for a flue is characterized in that the outer wall of the smoke inlet pipe (2), the outer wall of the connecting pipe (4) and the outer wall of the smoke return pipe (3) are all wrapped with a heat insulation sleeve. 4. An efficient and rapid intelligent leakage detection system for a flue according to claim 3, characterized in that: a smoke inlet valve (201) is installed on the smoke inlet pipe (2), and a smoke return valve (301) is installed on the smoke return pipe (3). 5. The efficient and rapid intelligent leakage detection system for a flue according to claim 1 is characterized in that: an inner wall of the assembly tube (5) is provided with an internal thread, and the temperature detection probe (6) is fixedly mounted on the assembly tube (5) by means of threads. 6. An efficient and rapid intelligent leakage detection system for a flue according to claim 3, characterized in that the inclination angles of the smoke inlet pipe (2) and the smoke return pipe (3) are between 120° and 150°.