Detection device
By installing a detection device with openings and guide rail sleeves on the outer wall of the boiler, accurate monitoring of the combustion status inside the boiler is achieved, solving problems such as uneven combustion, improving safety and work efficiency, and providing real-time data support.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUODIAN ENVIRONMENTAL PROTECTION RES INST CO LTD
- Filing Date
- 2025-07-03
- Publication Date
- 2026-06-26
AI Technical Summary
In the existing technology, there is a lack of effective monitoring methods when coal-fired power plant boilers are blended with different types of coal, which leads to problems such as uneven combustion, local oxygen deficiency, excessive boiler wall temperature, high unit energy consumption, uneven NOx generation, high temperature corrosion and furnace coking, affecting the safe operation of the unit. In addition, traditional detection devices are easily damaged in high temperature environments, making it difficult to effectively monitor and adjust the combustion status inside the boiler.
A detection device is designed, comprising a first housing, a guide rail sleeve, a guide rail bracket, and a detection element. By setting an opening in the outer peripheral wall of the boiler, the guide rail sleeve communicates with the opening, the guide rail assembly can be moved and extended into the sleeve, and the detection element can be extended into the opening for detection. Combined with a drive device and control components, it can achieve accurate detection of the inside of the boiler, avoid flue gas and flame leakage, and protect the device from damage.
It enables precise monitoring of the combustion status inside the boiler, preventing a decline in boiler efficiency, improving safety and reliability, providing real-time data acquisition and analysis functions, supporting targeted adjustments, and reducing personal safety risks.
Smart Images
Figure CN224416242U_ABST
Abstract
Description
Technical Field
[0001] This utility model mainly relates to the field of high temperature detection technology, and in particular to a detection device. Background Technology
[0002] In recent years, due to the daily operational pressures of coal-fired power plants and fluctuations in fuel market prices, blending economical coal types has become the primary way for these plants to reduce costs. However, improper blending can lead to furnace coking and high-temperature corrosion of the water-cooled walls. Furthermore, improper combustion adjustments can cause low-ash-melting-point coals to more easily cause furnace coking, severely impacting the safe operation of the unit. When problems such as uneven boiler combustion, localized oxygen deficiency, localized excessive boiler wall temperature, high unit energy consumption, uneven NOx generation, high-temperature corrosion, and furnace coking occur, operators lack specific monitoring tools, hindering the monitoring and adjustment of the boiler's internal combustion status and the specific analysis of safety issues, making targeted adjustments impossible. Utility Model Content
[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a detection device that can detect the interior of a boiler and prevent accidental leakage of flue gas, flames, etc., thus avoiding impact on the boiler's operating efficiency.
[0004] According to an embodiment of the present invention, a detection device is used to detect a boiler. The detection device includes: a first housing, which is disposed on the outer peripheral wall of the boiler and defines an installation space with the outer peripheral wall of the boiler. An opening is provided on the outer peripheral wall of the boiler, and the opening communicates with the installation space; a guide rail sleeve, which is disposed in the installation space and communicates with the opening; a guide rail bracket, one end of which is disposed on the first housing in the longitudinal direction; a guide rail assembly, which is movable along the longitudinal direction of the guide rail bracket, and one end of which extends into the guide rail sleeve in the longitudinal direction; and a detection element, which is disposed at the end of the guide rail assembly that extends into the guide rail sleeve. When the guide rail assembly continues to extend into the guide rail sleeve and reaches its limit position, the end of the guide rail assembly with the detection element extends into the opening.
[0005] According to the detection device of this utility model embodiment, an opening is provided on the outer peripheral wall of the boiler, and a guide rail sleeve is disposed within the installation space, communicating with the opening. One end of the guide rail assembly along the length direction can extend into the guide rail sleeve along the length direction of the guide rail bracket. A detection element is disposed at the end of the guide rail assembly that extends into the guide rail sleeve. When the guide rail assembly continues to extend into the guide rail sleeve and reaches its limit position, the end of the guide rail assembly with the detection element extends into the opening. When there is a detection requirement, the guide rail assembly moves along the length direction of the guide rail bracket toward the direction closer to the opening, and the end of the guide rail assembly with the detection element extends into the opening. The detection element can detect the interior of the boiler. Furthermore, the first housing is disposed on the outer peripheral wall of the boiler and defines an installation space with the outer peripheral wall of the boiler, preventing accidental leakage of flue gas, flames, etc. from the boiler and avoiding affecting the working efficiency of the boiler.
[0006] In some embodiments of this utility model, the guide rail assembly includes: a driving device disposed on the guide rail bracket and movable along the length direction of the guide rail bracket; a guide rail fixedly connected to the driving device and moving synchronously, the guide rail having a receiving cavity inside, the receiving cavity extending along the length direction of the guide rail, a probe disposed in the receiving cavity, the probe being configured to extend into the opening when the driving device moves along the length direction of the guide rail bracket to a position close to the limit of the first housing.
[0007] In some embodiments of this utility model, the driving device is an actuator motor; and / or, the probe is an actuator probe.
[0008] In some embodiments of this utility model, the length direction of the guide rail is parallel to the length direction of the guide rail bracket.
[0009] In some embodiments of this utility model, the guide rail is provided with an air inlet, which is connected to the receiving cavity and is used to introduce airflow into the receiving cavity.
[0010] In some embodiments of this utility model, both the guide rail and the guide rail sleeve are made of stainless steel.
[0011] In some embodiments of this utility model, the detection device further includes a control component, which is electrically connected to the detection element and is used by operators in the central control room to operate and view the probe in real time to perform detection work. It also has functions of playback, search, background storage, and data output.
[0012] In some embodiments of this utility model, the guide rail bracket is made of carbon steel.
[0013] In some embodiments of this utility model, the outer peripheral wall of the boiler is provided with reinforcing ribs, and the guide rail bracket is fixedly connected to the reinforcing ribs.
[0014] In some embodiments of this utility model, when the guide rail assembly extends continuously into the guide rail sleeve and reaches the limit position, the guide rail assembly and the guide rail sleeve together define a cooling channel. Along the length direction of the guide rail sleeve, the end of the guide rail sleeve opposite to the opening is provided with a liquid inlet, and the end of the guide rail sleeve near the opening is provided with a liquid outlet. Both the liquid inlet and the liquid outlet are connected to the cooling channel.
[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0016] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0017] Figure 1 This is a schematic diagram of a partial structure of the detection device and boiler according to an embodiment of the present utility model;
[0018] Figure 2 This is a schematic diagram of the detection device and part of the boiler of the removal control component according to an embodiment of the present utility model.
[0019] Figure label:
[0020] 100. Detection device;
[0021] 1. First housing; 11. Accommodating space; 2. Guide rail sleeve; 21. Liquid inlet; 22. Liquid outlet; 23. Cooling channel; 3. Guide rail bracket; 4. Guide rail assembly; 41. Drive device; 42. Guide rail; 421. Accommodating cavity; 422. Air inlet; 5. Detector; 6. Control assembly;
[0022] 200. Boiler; 201. Opening; 202. Reinforcing rib. Detailed Implementation
[0023] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0024] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0026] In recent years, due to the daily operational pressures of coal-fired power plants and fluctuations in fuel market prices, blending economical coal types has become the primary way for these plants to reduce costs. However, this blending involves more coal types, resulting in larger deviations from the design coal quality, a wide range of coal quality fluctuations, and complex coal sources. The blending of economical coal types leads to an increase in high-ash and high-sulfur coals. Improper blending can cause furnace coking and high-temperature corrosion of the water-cooled walls. Furthermore, improper combustion adjustments can make low-ash-melting-point coals more prone to furnace coking, seriously affecting the safe operation of the unit. Currently, boiler combustion is mainly assessed through operating oxygen levels, tail-end flue gas temperature distribution, and steam-water system parameters. When problems such as uneven boiler combustion, localized oxygen deficiency, localized boiler wall temperature overheating, high unit energy consumption, uneven NOx generation, high-temperature corrosion, and furnace coking occur, operators lack specific monitoring methods, hindering the monitoring and adjustment of the boiler's internal combustion status and the specific analysis of safety issues, making targeted adjustments impossible.
[0027] In terms of coal-fired power plant operation, increasing the blending ratio of economical coal types is one of the best ways to improve unit profitability. However, during the blending process, preventing problems such as coking, corrosion, steam temperature deviation, overheating of heating surfaces, and unstable combustion caused by blending, and rationally optimizing the blending ratio, requires a more comprehensive understanding of the actual combustion conditions in the furnace. This necessitates the use of more detection equipment to monitor furnace combustion. However, the high-temperature combustion environment in the boiler furnace is highly damaging to traditional monitoring equipment, and manual on-site detection also poses a significant risk to the personal safety of operators.
[0028] The following is for reference. Figures 1-2 Description of a detection device 100 according to an embodiment of the present invention.
[0029] like Figure 1 and Figure 2 As shown, the detection device 100 according to an embodiment of the present utility model includes a first housing 1, a guide rail sleeve 2, a guide rail bracket 3, a guide rail assembly 4, and a detection element 5.
[0030] The detection device 100 is used to detect the boiler 200 and can detect the combustion conditions inside the boiler 200.
[0031] like Figure 1 and Figure 2 As shown, the first housing 1 is disposed on the outer peripheral wall of the boiler 200 and defines an installation space with the outer peripheral wall of the boiler 200. An opening 201 is provided on the outer peripheral wall of the boiler 200, communicating with the installation space. A guide rail sleeve 2 is disposed within the installation space, communicating with the opening 201. The first housing 1 protects the guide rail sleeve 2, preventing it from being damaged by external forces. In this embodiment, the first housing 1 is a thermal insulation and sealing component, preventing accidental leakage of flue gas, flames, etc., from the boiler 200, thus avoiding affecting the working efficiency of the boiler 200.
[0032] The length direction of guide rail bracket 3 (e.g.) Figure 1 One end of the guide rail assembly 4 (shown in the first direction) is disposed on the first housing 1, and the guide rail assembly 4 is movable along the length direction of the guide rail bracket 3. The length direction of the guide rail assembly 4 (as shown in the first direction) is... Figure 1 One end of the guide rail assembly 4 (shown in the first direction) extends into the guide rail sleeve 2. The probe 5 is located at the end of the guide rail assembly 4 that extends into the guide rail sleeve 2. When the guide rail assembly 4 continues to extend into the guide rail sleeve 2 and reaches the limit position, the end of the guide rail assembly 4 with the probe 5 extends into the opening 201.
[0033] Understandably, when there is a need for detection, the guide rail assembly 4 moves along the length of the guide rail bracket 3 toward the direction close to the opening 201, and one end of the guide rail assembly 4 with the detection element 5 extends into the opening 201, and the detection element 5 can detect the inside of the boiler 200.
[0034] The high-temperature airflow inside the boiler 200 may enter the accommodating space 11 through the opening 201. The guide rail bracket 3 is located outside the first housing 1 to prevent the high-temperature airflow from damaging the guide rail bracket 3 and the guide rail assembly 4.
[0035] According to the detection device 100 of this utility model embodiment, an opening 201 is provided on the outer peripheral wall of the boiler 200, and a guide rail sleeve 2 is provided in the installation space. The guide rail sleeve 2 is connected to the opening 201. One end of the guide rail assembly 4 in the length direction can be moved into the guide rail sleeve 2 along the length direction of the guide rail bracket 3. The detection element 5 is provided at the end of the guide rail assembly 4 that extends into the guide rail sleeve 2. When the guide rail assembly 4 continues to extend into the guide rail sleeve 2 and reaches the limit position, the end of the guide rail assembly 4 with the detection element 5 extends into the opening 201. When there is a detection requirement, the guide rail assembly 4 moves along the length direction of the guide rail bracket 3 toward the direction close to the opening 201, and the end of the guide rail assembly 4 with the detection element 5 extends into the opening 201. The detection element 5 can detect the inside of the boiler 200. Furthermore, the first housing 1 is located on the outer peripheral wall of the boiler 200 and defines an installation space with the outer peripheral wall of the boiler 200, so as to prevent accidental leakage of flue gas, flames, etc. inside the boiler 200 and avoid affecting the working efficiency of the boiler 200.
[0036] In this embodiment, one end of the guide rail sleeve 2 is welded to the inner wall of the accommodating space 11, and the other end is welded to the outer peripheral wall of the boiler 200.
[0037] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the guide rail assembly 4 includes a drive device 41 and a guide rail 42. The drive device 41 is mounted on the guide rail bracket 3 and is movable along the length direction of the guide rail bracket 3. The guide rail 42 is fixedly connected to the drive device 41 and moves synchronously. The drive device 41 can drive the guide rail 42 to realize the movement of the guide rail 42. The guide rail 42 has a receiving cavity 421 inside, which is located along the length direction of the guide rail 42 (e.g., ...). Figure 1 Extending in the first direction shown, the detector 5 is disposed within the receiving cavity 421, and the guide rail 42 can protect the detector 5 from external damage. The detector 5 is configured to extend into the opening 201 when the drive device 41 moves along the length direction of the guide rail bracket 3 to a position close to the limit of the first housing 1, so as to facilitate the detector 5 to detect the combustion status inside the boiler 200.
[0038] In some embodiments of this utility model, the drive device 41 is an actuator motor. The actuator motor receives instructions from the controller and uses closed-loop or open-loop control principles to convert weak electrical signals into powerful, precise and fast-responding mechanical motion, thereby achieving precise positioning, stable speed regulation or constant torque output of the load.
[0039] At this time, the first housing 1 can isolate the actuator motor and the boiler 200.
[0040] In some embodiments of this utility model, the detector 5 is an execution probe. The execution probe acquires the position, size, shape, state or other physical information of the target object with high precision and high speed through physical contact or non-contact methods, and immediately converts this information into trigger signals or control commands to drive subsequent measurement recording, motion control, quality judgment, sorting operations or specific process actions, thereby realizing intelligent, precise and automated production and inspection.
[0041] The probe can be configured with the appropriate functions based on the measurement parameters (e.g., measuring temperature, measuring flow rate, recording video, taking photos, testing dust concentration).
[0042] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the length direction of the guide rail 42 is parallel to the length direction of the guide rail bracket 3, so that when the driving device 41 drives the guide rail 42 to move along the length direction of the guide rail bracket 3, the guide rail 42 moves along its own length direction, and the movement of the guide rail 42 is relatively smooth. The movement trajectory is relatively simple.
[0043] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the guide rail 42 is provided with an air inlet 422, which is connected to the receiving cavity 421 and is used to introduce airflow into the receiving cavity 421. The airflow can be compressed air, etc., which can be used to prevent dust in the furnace of the boiler 200 from entering the interior of the guide rail 42 and to cool the actuator probe inside the guide rail 42 in real time.
[0044] In this embodiment, the air inlet 422 may be equipped with a pipe or valve to control the airflow.
[0045] In some embodiments of this utility model, both the guide rail 42 and the guide rail sleeve 2 are made of stainless steel. This ensures the strength of the guide rail 42 and the guide rail sleeve 2 while also ensuring their resistance to high temperature and high humidity environments, thereby increasing their service life.
[0046] In some embodiments of this utility model, such as Figure 1 As shown, the detection device 100 also includes a control component 6, which is electrically connected to the detection element 5. It is used by the operator in the central control room to operate and view the probe in real time to perform detection work. It also has the functions of review, search, background storage, and data output to ensure that the data collected by the detection device 100 is safely, reliably and normally operated, and is safely output and displayed.
[0047] In some embodiments of this utility model, the guide rail bracket 3 is made of carbon steel, which has high strength and low manufacturing cost.
[0048] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the outer peripheral wall of the boiler 200 is provided with reinforcing ribs 202, and the guide rail bracket 3 is fixedly connected to the reinforcing ribs 202, which can make the installation position of the guide rail bracket 3 more reliable.
[0049] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, when the guide rail assembly 4 extends continuously into the guide rail sleeve 2 and reaches its limit position, the guide rail assembly 4 and the guide rail sleeve 2 together define a cooling channel 23. Along the length of the guide rail sleeve 2, one end of the guide rail sleeve 2 away from the opening 201 is provided with a liquid inlet 21, and the other end of the guide rail sleeve 2 near the opening 201 is provided with a liquid outlet 22. Both the liquid inlet 21 and the liquid outlet 22 are connected to the cooling channel 23. When the guide rail assembly 4 extends continuously into the guide rail sleeve 2 and reaches its limit position, coolant can enter the cooling channel 23 from the liquid inlet 21, and the coolant cools the guide rail sleeve 2 and the guide rail 42. After the detection is completed, the coolant flows out of the cooling channel 23 from the liquid outlet 22, and the guide rail 42 moves in the direction of extending out of the guide rail sleeve 2.
[0050] In this embodiment, pipes and valves can be provided at both the inlet 21 and the outlet 22 to control the coolant.
[0051] Other configurations and operations of the detection device 100 according to the embodiments of the present invention are known to those skilled in the art and will not be described in detail here.
[0052] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0053] Although embodiments of the present invention have been shown and described, those skilled in the art will understand 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 claims and their equivalents.
Claims
1. A detection device, characterized in that, The detection device is used for detecting boilers and includes: A first housing is disposed on the outer peripheral wall of the boiler and defines an installation space with the outer peripheral wall of the boiler. An opening is provided on the outer peripheral wall of the boiler and the opening communicates with the installation space. A guide rail sleeve is disposed within the installation space and communicates with the opening; A guide rail bracket, one end of which is located on the first housing along its length; A guide rail assembly, which is movable along the length direction of the guide rail bracket, with one end of the guide rail assembly extending into the guide rail sleeve; A probe is provided at one end of the guide rail assembly that extends into the guide rail sleeve. When the guide rail assembly continues to extend into the guide rail sleeve and reaches its limit position, the end of the guide rail assembly with the probe extends into the opening.
2. The detection device according to claim 1, characterized in that, The guide rail assembly includes: A driving device, which is mounted on the guide rail bracket and is movable along the length of the guide rail bracket; The guide rail is fixedly connected to the driving device and moves synchronously. The guide rail has a receiving cavity inside, which extends along the length direction of the guide rail. The probe is disposed in the receiving cavity and is configured to extend into the opening when the driving device moves along the length direction of the guide rail support to a position close to the limit of the first housing.
3. The detection device according to claim 2, characterized in that, The driving device is an actuator motor; And / or, the probe is an execution probe.
4. The detection device according to claim 2, characterized in that, The length direction of the guide rail is parallel to the length direction of the guide rail bracket.
5. The detection device according to claim 2, characterized in that, The guide rail is provided with an air inlet, which is connected to the receiving cavity and is used to introduce airflow into the receiving cavity.
6. The detection device according to claim 2, characterized in that, Both the guide rail and the guide rail sleeve are made of stainless steel.
7. The detection device according to claim 2, characterized in that, Also includes: The control component is electrically connected to the probe and is used by the operator in the central control room to operate and view the probe in real time to perform the detection work. It also has the functions of playback, search, background storage and data output.
8. The detection device according to claim 1, characterized in that, The guide rail bracket is made of carbon steel.
9. The detection device according to claim 1, characterized in that, The outer peripheral wall of the boiler is provided with reinforcing ribs, and the guide rail bracket is fixedly connected to the reinforcing ribs.
10. The detection device according to claim 1, characterized in that, When the guide rail assembly extends continuously into the guide rail sleeve and reaches its limit position, the guide rail assembly and the guide rail sleeve together define a cooling channel. Along the length direction of the guide rail sleeve, the end of the guide rail sleeve opposite to the opening is provided with a liquid inlet, and the end of the guide rail sleeve near the opening is provided with a liquid outlet. Both the liquid inlet and the liquid outlet are connected to the cooling channel.