Power plant flue gas on-line detection equipment

Abstract

The invention discloses power plant flue gas on-line detection equipment. The equipment comprises an outer box body; the detection equipment main body is arranged in the outer box body, the detection equipment main body is connected with a connecting pipe for supplying flue gas to be detected, the outer box body is provided with a connecting hole for the connecting pipe to penetrate through, and the outer box body is connected with the detection equipment main body; the supporting and protecting assembly is used for fixing the connecting pipe to the outer box body and comprises a limiting base, a supporting frame and a protecting outer ring, the limiting base is fixed to the outer box body, the protecting outer ring is fixed to the connecting pipe and located outside the outer box body, one end of the supporting frame is hinged to the protecting outer ring, and the other end of the supporting frame is used for being connected to the limiting base in a clamped mode. Powerful supporting protection is provided for the exterior of the connecting pipe through the supporting frame, the stability of the connecting pipe is enhanced, the risk that the connecting pipe inclines and shakes is avoided, and the problems of sealing failure, breakage and the like caused by shaking of the connecting pipe are also avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of smoke detection, and more specifically to an online smoke detection device for a power plant. Background Art

[0002] Thermal control of power plants mainly involves the combustion process, boilers, steam turbines, generators, cooling systems and exhaust gas treatment. The exhaust gas generated during the combustion process contains a large amount of harmful substances, such as sulfur dioxide, nitrogen oxides and particulate matter. In order to protect the environment and human health, thermal power plants need to treat the exhaust gas. Common treatment methods include desulfurization, denitrification and dust removal to reduce the emission of harmful substances in the exhaust gas.

[0003] The power plant adopts the integrated control technology of electrical and thermal control to realize the intelligent monitoring, diagnosis and optimization control of the power plant equipment and systems. Through the integration of electrical and thermal data, it realizes the comprehensive operation management of the power plant to improve the reliability, safety and economy. As an important tool for environmental protection detection, the accuracy and reliability of flue gas online detection are crucial to environmental protection work. The current detection equipment needs to install the connecting pipe into the equipment to ensure the accuracy of the flue gas numerical detection, but the connection between the connecting pipe and the equipment has no strong protection. After long-term use, the connecting pipe is prone to tilt and shake, affecting the sealing of the connection, and causing the connecting pipe to break and reduce safety.

[0004] Therefore, how to protect the connecting pipe to prevent the connecting pipe from tilting and shaking, which may cause sealing failure and breakage, is an urgent problem to be solved by those skilled in the art. Summary of the invention

[0005] In view of this, an object of the present invention is to provide an online smoke detection device for a power plant to protect the connecting pipe to prevent problems such as sealing failure and breakage caused by tilting and shaking of the connecting pipe.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] An online detection device for flue gas in a power plant, comprising:

[0008] outer box;

[0009] The detection device body is arranged in the outer box, and the detection device body is connected to a connecting pipe for supplying smoke to be detected, and the outer box has a connecting hole for the connecting pipe to penetrate, and is connected to the detection device body;

[0010] A support and protection assembly is used to fix the connecting pipe to the outer box body. The support and protection assembly includes a limit seat, a support frame and a protective outer ring. The limit seat is fixed to the outer box body, and the protective outer ring is fixed on the connecting pipe and is located outside the outer box body. One end of the support frame is hinged to the protective outer ring, and the other end is used to be clamped on the limit seat.

[0011] Optionally, in the above-mentioned power plant flue gas online detection device, there are multiple limit seats, and each of the limit seats is arranged around the connecting hole, and the number of the support frame and the limit seats is the same and they are arranged one by one; and / or,

[0012] The limiting seat has a limiting slot, and the end of the support frame has a fixing block that is engaged with the limiting slot; and / or,

[0013] A hinge support is arranged on the protective outer ring, and the support frame is hinged to a rotating rod of the hinge support.

[0014] Optionally, the above-mentioned power plant flue gas online detection equipment also includes a mounting seat, which is fixed to the outer wall of the outer box body, and the mounting seat has a mounting seat hole connected to the connecting hole, and the connecting pipe enters the outer box body through the mounting seat hole and the connecting hole.

[0015] Optionally, in the above-mentioned power plant flue gas online detection equipment, the limit seat is fixed on the mounting seat, or arranged on the outside of the mounting seat.

[0016] Optionally, in the above-mentioned power plant flue gas online detection device, a portion of the connecting pipe extending into the interior of the outer box is sleeved with a sealing rubber ring, and the sealing rubber ring is sealed and connected to the detection device body.

[0017] Optionally, in the above-mentioned power plant flue gas online detection equipment, the outer box body has a disassembly and assembly opening for disassembly and assembly of the detection equipment body, and the disassembly and assembly opening is provided with an openable and closable protective door.

[0018] Optionally, in the above-mentioned power plant flue gas online detection device, the first end of the protective door is hinged to the outer box body, the second end of the protective door is fixedly connected to a first external connection plate, and the outer box body is provided with a second external connection plate corresponding to the first external connection plate;

[0019] The bottoms of the first external plate and the second external plate are both fixedly connected to a fixing seat, one of the fixing seats is movably connected to a limiting frame, a movable end of the limiting frame is provided with an embedding portion, and the other fixing seat is provided with an embedding groove for the embedding portion to be inserted into when the protective door is closed.

[0020] Optionally, in the above-mentioned power plant flue gas online detection device, the limit frame is a flexible elastic member, the embedded part is arranged on the side of the limit frame facing the embedded groove, and the side of the limit frame facing away from the embedded part is provided with a hard push-pull plate; and / or,

[0021] A first control panel is arranged on the side of the detection device body facing the disassembly and assembly port, a control button is arranged at the bottom of the first control panel, and a transparent window penetrating the wall thickness of the protection door is arranged at a position corresponding to the first control panel.

[0022] Optionally, in the above-mentioned power plant flue gas online detection device, the outer box body is fixed with a fixing plate, the fixing plate passes through the outer box body and is attached to the detection device body;

[0023] An alarm is fixed on the fixing plate. The alarm is located outside the outer box and is used to sound an alarm when a fire occurs in the main body of the detection device.

[0024] Optionally, in the above-mentioned power plant flue gas online detection device, connecting plates are provided at both ends of the fixing plate, and fastening holes are opened on the connecting plates so as to be fastened to the outer box body through the fastening holes by means of mounting bolts, and the outer ends of the mounting bolts are fixedly connected with knobs;

[0025] The fixing plate is provided with a connector, and the alarm is fixed on the connector.

[0026] The power plant flue gas online detection equipment provided by the present invention has a connecting pipe that passes through the outer box body and is connected to the detection equipment body to transport the power plant flue gas to the detection equipment body for detection. A protective outer ring is sleeved near the end of the connecting pipe that extends into the outer box body, and a support frame is hinged on the protective outer ring. After the connecting pipe is connected to the detection equipment body, the support frame is flipped downward, and the support frame is clamped on the limit seat by using an interlocking structure, so that the protective outer ring is fixed through the support frame and the limit seat. Since the protective outer ring is sleeved on the connecting pipe, the connecting pipe is fixed. The present invention provides strong support and protection for the outside of the connecting pipe through the support frame, enhances the stability of the connecting pipe itself, avoids the risk of tilting and shaking of the connecting pipe, and also avoids problems such as sealing failure and breakage caused by shaking of the connecting pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 A schematic diagram of the structure of the power plant flue gas online detection device provided by an embodiment of the present invention with the protective door removed;

[0029] Figure 2 A schematic diagram of the structure of an online flue gas detection device for a power plant provided by an embodiment of the present invention;

[0030] Figure 3 A top view of a support and protection assembly provided by an embodiment of the present invention;

[0031] Figure 4 A side view of a fixing plate provided in an embodiment of the present invention;

[0032] Figure 5 A top view of an online flue gas detection device for a power plant provided by an embodiment of the present invention;

[0033] Figure 6 A front view of a fixing seat provided in an embodiment of the present invention.

[0034] The meanings of the reference numerals in the figures are as follows:

[0035] 1-base; 2-outer box; 3-connecting plate; 4-alarm; 5-fixing plate; 6-mounting bolts; 7-detection equipment body; 8-mounting seat; 9-connecting pipe;

[0036] 10-protective outer ring; 11-fixed block; 12-sealing rubber ring; 13-first control panel; 14-control button; 15-protective door; 16-connector; 17-transparent window; 18-support frame; 19-limiting seat;

[0037] 20-first external board; 21-second control panel; 22-fixed chassis; 23-fixed seat; 24-rotating rod; 25-hinge support; 26-knob; 27-limiting frame; 28-pushing plate; 29-second external board;

[0038] 30-Embedded part. DETAILED DESCRIPTION

[0039] The core of the present invention is to provide an online smoke detection device for a power plant to protect the connecting pipe to prevent problems such as sealing failure and breakage caused by the tilting and shaking of the connecting pipe.

[0040] The following embodiments are described with reference to the accompanying drawings. In addition, the embodiments shown below do not limit the invention contents described in the claims. In addition, the entire contents of the structures represented by the following embodiments are not limited to those necessary as solutions to the inventions described in the claims. It should be noted that, for ease of description, only the parts related to the inventions are shown in the accompanying drawings. The embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0041] like Figure 1-Figure 3 As shown, the power plant flue gas online detection device disclosed in the embodiment of the present invention comprises an outer box 2, a detection device body 7 and a support and protection assembly. The detection device body 7 is arranged in the outer box 2, and the outer box 2 is used to provide protection for the detection device body 7. The four corners of the outer bottom of the outer box 2 are fixedly connected with a base 1 to support the outer box 2.

[0042] The detection device body 7 is connected with a connection pipe 9 for supplying smoke to be detected, and the outer box body 2 has a connection hole for the connection pipe 9 to penetrate, and is connected to the detection device body 7. The connection pipe 9 enters the outer box body 2 through the connection hole of the outer box body 2, and is sealed and connected with the collection port of the detection device body 7, so that the smoke to be detected can be transported to the detection device body 7 and detected by the detection device body 7.

[0043] The supporting and protecting assembly is used to fix the connecting tube 9 to the outer box body 2, so that the connecting tube 9 can be extended into one end of the outer box body 2, and the outside of the outer box body 2 is processed to prevent the connection part between the connecting tube 9 and the detection equipment body 7 from tilting and shaking.

[0044] The support and protection assembly includes a limit seat 19, a support frame 18 and a protective outer ring 10. The limit seat 19 is fixed to the outer box body 2, and the protective outer ring 10 is fixed to the connecting pipe 9 and is located outside the outer box body 2. The position of the protective outer ring 10 on the connecting pipe 9 should be as close as possible to the outer wall of the outer box body 2 to prevent the problem of poor fixing effect caused by being far away from the outer wall of the outer box body 2.

[0045] One end of the support frame 18 is hinged to the protective outer ring 10, and the other end is used to be clamped to the limit seat 19. That is, the support frame 18 is movably connected to the protective outer ring 10. When in use, the connecting pipe 9 vertically passes through the outer box body 2 and enters the inner part of the outer box body 2 to connect with the main body 7 of the detection device. The support frame 18 is turned downward and inserted and installed on the corresponding limit seat 19, providing strong support for the bottom of the connecting pipe 9, so that the connection between the connecting pipe 9 and the main body 7 of the detection device remains sealed.

[0046] In the power plant flue gas online detection device provided by the present invention, the connecting pipe 9 passes through the outer box body 2 and is connected with the detection device body 7 to transport the power plant flue gas to the detection device body 7 for detection. A protective outer ring 10 is sleeved near the end of the connecting pipe 9 extending into the outer box body 2, and a support frame 18 is hinged on the protective outer ring 10. After the connecting pipe 9 is connected to the detection device body 7, the support frame 18 is turned downward, and the support frame 18 is clamped on the limit seat 19 by using the plug-in structure, so that the protective outer ring 10 is fixed by the support frame 18 and the limit seat 19, and because the protective outer ring 10 is sleeved on the connecting pipe 9, the connecting pipe 9 is fixed.

[0047] The present invention provides strong support and protection for the outside of the connecting pipe 9 through the support frame 18, thereby enhancing the stability of the connecting pipe 9 itself and avoiding the risk of the connecting pipe 9 tilting and shaking, thereby avoiding problems such as sealing failure and breakage caused by the shaking of the connecting pipe 9.

[0048] In a specific embodiment of the present invention, there are multiple limit seats 19, and each limit seat 19 is arranged around the connecting hole. Figure 3 As shown, in this embodiment, four limit seats 19 are provided. It should be noted that those skilled in the art can also design the limit seats 19 to other numbers according to needs, and are not limited to 4. The limit seats 19 can be evenly arranged around the connecting hole to provide uniform and stable support for the connecting pipe 9.

[0049] The number of support frames 18 and limit seats 19 is the same, and they are arranged one by one. When installing the connecting tube 9, the connecting tube 9 should be rotated to the position where each support frame 18 corresponds to each limit seat 19, and then the connecting tube 9 should be inserted into the outer box body 2 so that each support frame 18 can be correspondingly engaged with each limit seat 19.

[0050] The limit seat 19 has a limit slot, and the end of the support frame 18 has a fixing block 11 that is engaged with the limit slot. After the support frame 18 is swung downward, the fixing block 11 at its end can be embedded in the limit slot of the limit seat 19 to fix the support frame 18.

[0051] Since one end of the support frame 18 is connected to the connecting pipe 9 through the protective outer ring 10, and the other end is connected to the limiting seat 19 through the fixing block 11, and since the limiting seat 19 is fixed on the outer box body 2, the fixing of the connecting pipe 9 relative to the outer box body 2 is achieved, so that the part of the connecting pipe 9 close to the outer box body 2 is bound and fixed, avoiding the risk of tilting and shaking of the connecting pipe 9. Moreover, by using the embedded clamping connection between the fixing block 11 and the limiting seat 19, disassembly and assembly can be conveniently achieved, thereby improving the disassembly and assembly efficiency.

[0052] In order to facilitate the rotation of the support frame 18, a hinge support 25 is provided on the outer wall of the protective outer ring 10, and a rotating rod 24 is provided on the hinge support 25. The support frame 18 is hinged to the rotating rod 24 of the hinge support 25 to realize the rotation of the support frame 18. In this embodiment, by adding the hinge support 25, the hinge point of the support frame 18 can be supported to have a certain distance from the protective outer ring 10, so that when the support frame 18 rotates, it will not interfere with the protective outer ring 10.

[0053] In a specific embodiment of the present invention, the power plant flue gas online detection device further includes a mounting seat 8, the mounting seat 8 is fixed to the outer wall of the outer box body 2, the mounting seat 8 has a mounting seat hole connected to the connecting hole, and the connecting pipe 9 enters the outer box body 2 through the mounting seat hole and the connecting hole. The mounting seat 8 has a certain height, and after the connecting pipe 9 is inserted into the outer box body 2, the mounting seat 8 can also support the connecting pipe 9, further improving the reliability of fixing the connecting pipe 9.

[0054] Furthermore, the limiting seat 19 can be fixed on the mounting seat 8, that is, the limiting seat 19 and the mounting seat 8 are designed as one component. When the mounting seat 8 is installed, the installation of each limiting seat 19 is also completed, thereby improving the installation efficiency.

[0055] It should be noted that the limit seat 19 can also be separately arranged with the mounting seat 8, and each limit seat 19 is arranged outside the mounting seat 8. When the limit seat 19 and the mounting seat 8 are separately arranged, the limit seat 19 and the outer box body 2 can be designed as an integrated structure, and can also be detachably installed on the outer box body 2.

[0056] In a specific embodiment of the present invention, the portion of the connecting tube 9 extending into the interior of the outer box 2 is sleeved with a sealing rubber ring 12, and the sealing rubber ring 12 is sealed and connected to the detection device body 7. By adding the sealing rubber ring 12 at the connection between the connecting tube 9 and the detection device body 7, the embodiment of the present invention can provide sealing at the connection between the connecting tube 9 and the detection device body 7, thereby effectively preventing the leakage of smoke.

[0057] In a specific embodiment of the present invention, the outer box body 2 has a disassembly opening for the detection device body 7 to be disassembled and assembled. The detection device body 7 is installed into the outer box body 2 through the disassembly opening, and can also be disassembled from the outer box body 2 through the disassembly opening. In order to improve the safety during the detection, the disassembly opening is provided with an openable and closable protective door 15, and the protective door 15 can be closed during the detection process. The protective door 15 can be opened and closed by rotating, for example, one side of the protective door 15 is hinged to one side of the disassembly opening by a hinge.

[0058] like Figure 5 and Figure 6 As shown, the first end of the protective door 15 is hinged to the outer box body 2 , the second end of the protective door 15 is fixedly connected to the first external connecting plate 20 , and the outer box body 2 is provided with a second external connecting plate 29 corresponding to the first external connecting plate 20 .

[0059] The bottoms of the first external plate 20 and the second external plate 29 are both fixedly connected with a fixing seat 23, one of the fixing seats 23 is movably connected with a limiting frame 27, and a movable end of the limiting frame 27 is provided with an embedding portion 30, and the other fixing seat 23 is provided with an embedding groove for the embedding portion 30 to be inserted into when the protective door 15 is closed.

[0060] The protective door 15 rotates backwards to fit with the front end of the outer box body 2, so that the protective door 15 is in a closed state, the first external plate 20 and the second external plate 29 are aligned, and the fixing seats 23 of the first external plate 20 and the second external plate 29 are also aligned. Then the limit frame 27 is flipped. If the limit frame 27 is connected to the fixing seat 23 at the rear, it is flipped in the direction of the fixing seat 23 at the front; correspondingly, if the limit frame 27 is connected to the fixing seat 23 at the front, it is flipped in the direction of the fixing seat 23 at the rear, so that the limit frame 27 is flipped to a position corresponding to the other fixing seat 23. By inserting the embedded part 30 on the limit frame 27 into the embedded groove of the fixing seat 23, the protective door 15 is quickly fixed.

[0061] Furthermore, the limiting frame 27 can be a flexible elastic member, such as a plastic member, or other deformable flexible member. In this embodiment, since the limiting frame 27 is a flexible member, the embedding portion 30 thereon is inserted into the embedding groove for convenience.

[0062] In this embodiment, the embedding portion 30 is arranged on the side of the limiting frame 27 facing the embedding groove, and a hard push-pull plate 28 is arranged on the side of the limiting frame 27 facing away from the embedding portion 30. When the embedding portion 30 is inserted into the embedding groove of the fixing seat 23, the hard push-pull plate 28 can be pushed in the direction of the embedding groove. Since the hard push-pull plate 28 has a certain rigidity and is not easily deformed, the force can be transmitted to the embedding portion 30, and finally the embedding portion 30 is pushed into the embedding groove.

[0063] Furthermore, a first control panel 13 is provided on the side of the detection device body 7 facing the disassembly and assembly port, a control button 14 is provided at the bottom of the first control panel 13, and a transparent window 17 that runs through the wall thickness of the protection door 15 is provided at a position corresponding to the first control panel 13. The first control panel 13 and the control button 14 can both realize the control of the detection device body 7 and are input components of the detection device body 7; in addition, the first control panel 13 can also display parameters such as detection data.

[0064] The second control panel 21 may be fixedly connected to the top of the outer side of the second external board 29, and a fixed base frame 22 may be fixedly connected between the bottom of the second control panel 21 and the side wall of the second external board 29 to support the second control panel 21 and improve the installation stability of the second control panel 21. The second control panel 21 is located outside the outer box 2, and the detection process can be simply operated outside without opening the protective door 15.

[0065] like Figure 2 and Figure 4As shown, in a specific embodiment of the present invention, the outer box body 2 is fixed with a fixing plate 5, which passes through the outer box body 2 and is attached to the detection device body 7 to conduct the temperature of the detection device body 7. An alarm 4 is fixed on the fixing plate 5, and the alarm 4 is located outside the outer box body 2. The alarm 4 is used to sound an alarm when a fire occurs in the detection device body 7.

[0066] Those skilled in the art can understand that the alarm 4 can determine whether a fire occurs by collecting the temperature and smoke of the detection device body 7. The alarm 4 is an alarm commonly used in the prior art, and the alarm principle thereof is not described in detail in this embodiment.

[0067] The alarm 4 can obtain the temperature of the detection device body 7 through the fixing plate 5, and when the temperature exceeds a certain temperature, it can be determined that a fire has occurred; a connecting hole can also be provided in the fixing plate 5, and the alarm 4 is connected to the detection device body 7 through the connecting hole to collect smoke data of the alarm 4. When the smoke data exceeds a certain preset value, it can be determined that a fire has occurred. This embodiment does not limit the way in which the alarm 4 determines a fire, and different judgment data can be used according to different alarms 4.

[0068] In this embodiment, the alarm 4 is arranged outside the outer box 2 to ensure that the alarm signal of the alarm 4 plays the maximum role when a fire occurs, and is not affected by the outer box 2. The alarm 4 can remind the staff of abnormal conditions by sound, light, etc., and play the role of early warning and prevention. It can attract attention at the first time and prompt the staff to take corresponding measures to avoid or reduce potential dangers and losses. When a fire occurs, the alarm 4 will immediately make a sound and / or flash to remind the staff to evacuate immediately and take fire-fighting measures to minimize casualties and property losses.

[0069] Furthermore, connecting plates 3 are provided at both ends of the fixing plate 5, and fastening holes are provided on the connecting plates 3, and the connecting plates 3 are fastened to the outer box body 2 by passing the mounting bolts 6 through the fastening holes. That is, the fixing plate 5 is fixed to the outer box body 2 by the connecting plates 3 extending outward at both ends thereof. The thickness of the fixing plate 5 is greater than the thickness of the connecting plate 3, so that after the connecting plate 3 is fitted and fixed on the outer box body 2, a part of the fixing plate 5 can extend into the interior of the outer box body 2, and the other part can also be located outside the outer box body 2, so that the connection between the alarm 4 and the detection device body 7 can be realized through the fixing plate 5, so that the alarm 4 can collect the fire signal of the detection device body 7, and the alarm 4 can be installed outside the outer box body 2.

[0070] In order to facilitate the disassembly and assembly of the mounting bolt 6, the outer end (i.e., the end opposite to the threaded end) of the mounting bolt 6 is fixedly connected with a knob 26. Since the outer end of the mounting bolt 6 is provided with the knob 26, the mounting bolt 6 does not need to be tightened by a wrench, and the mounting bolt 6 can be directly rotated by the knob 26, thereby quickly disassembling and assembling the fixing plate 5.

[0071] The fixing plate 5 is provided with a connector 16, and the alarm 4 is fixed on the connector 16. In this embodiment, the alarm 4 is fixed on the fixing plate 5 through the connector 16. It can be understood by those skilled in the art that the alarm 4 can also be fixed on the fixing plate 5 by fasteners, buckles, etc.

[0072] In summary, the power plant flue gas online detection device disclosed in the embodiment of the present invention is through the mounting seat 8, the connecting pipe 9, the support frame 18, the fixing block 11, the limit seat 19 and the sealing rubber ring 12. The connecting pipe 9 vertically penetrates the interior of the mounting seat 8 and the outer box body 2, and is connected with the detection device body 7. The sealing rubber ring 12 is added at the connection between the connecting pipe 9 and the detection device body 7 to enhance the sealing between the structures and effectively prevent the leakage of flue gas. At the same time, the support frame 18 is turned downward, and the fixing block 11 is inserted and installed into the corresponding limit seat 19 by using the plug-in structure. The multiple groups of support frames 18 provide strong support and protection for the outside of the connecting pipe 9, enhance the stability of the connecting pipe 9 itself, and prevent the connecting pipe 9 from tilting and shaking;

[0073] The power plant flue gas online detection device disclosed in the embodiment of the present invention can be provided with two sets of alarms 4, which can be symmetrically arranged on both sides of the outer box body 2. When the detection device body 7 is abnormal, an alarm can be quickly issued to remind the surrounding people, thereby enhancing safety. The connecting plate 3 is placed on the outside of the outer box body 2, and the connecting plate 3 and the fixing plate 5 are strongly fixed by rotating and penetrating the mounting bolts 6, thereby facilitating installation and disassembly operations and optimizing the assembly structure.

[0074] The protective door 15 of the power plant flue gas online detection equipment disclosed in the embodiment of the present invention is movably installed to the front end of the outer box body 2, and the two cooperate with each other to provide all-round protection for the detection equipment body 7. The first external plate 20 and the second external plate 29 are positioned opposite to each other, and the limit frame 27 is flipped forward. The embedded part is fixed inside the fixing seat 23 by using the plug-in structure, and the protective door 15 is quickly fixed to facilitate the opening and closing operation of the protective door 15.

[0075] As shown in this application and claims, unless the context clearly indicates an exception, the words "a", "an", "a kind" and / or "the" do not refer to the singular, but also include the plural. Generally speaking, the terms "include" and "comprise" only indicate the inclusion of clearly identified steps and elements, and these steps and elements do not constitute an exclusive list. The method or device may also include other steps or elements. The elements defined by the sentence "includes a..." do not exclude the existence of other identical elements in the process, method, commodity or device that includes the elements.

[0076] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.

[0077] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0078] The principles and implementation methods of the present invention are described in this article using specific examples. The description of the above embodiments is only used to help understand the method and core ideas of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made to the present invention without departing from the principles of the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A power plant flue gas online detection device, characterized in that: include: Outer box (2); A detection device body (7) is arranged in the outer box (2), and the detection device body (7) is connected to a connection pipe (9) for supplying smoke to be detected, and the outer box (2) has a connection hole for the connection pipe (9) to pass through, and is connected to the detection device body (7); A support and protection component is used to fix the connecting pipe (9) to the outer box body (2), and the support and protection component comprises a limit seat (19), a support frame (18) and a protective outer ring (10), wherein the limit seat (19) is fixed to the outer box body (2), the protective outer ring (10) is fixed to the connecting pipe (9) and is located outside the outer box body (2), one end of the support frame (18) is hinged to the protective outer ring (10), and the other end is used to be clamped to the limit seat (19).

2. The power plant flue gas online detection equipment according to claim 1, characterized in that: There are a plurality of the limiting seats (19), and each of the limiting seats (19) is arranged around the connecting hole, and the number of the supporting frames (18) is the same as that of the limiting seats (19), and they are arranged in a one-to-one correspondence; and / or, The limiting seat (19) has a limiting slot, and the end of the support frame (18) has a fixing block (11) that is engaged with the limiting slot; and / or, A hinge support (25) is provided on the protective outer ring (10), and the support frame (18) is hingedly connected to a rotating rod (24) of the hinge support (25).

3. The power plant flue gas online detection equipment according to claim 1, characterized in that: It also comprises a mounting seat (8), the mounting seat (8) being fixed to the outer wall of the outer box body (2), the mounting seat (8) having a mounting seat hole communicating with the connecting hole, and the connecting pipe (9) entering the outer box body (2) through the mounting seat hole and the connecting hole.

4. The power plant flue gas online detection equipment according to claim 3, characterized in that: The limiting seat (19) is fixed on the mounting seat (8), or arranged on the outside of the mounting seat (8).

5. The power plant flue gas online detection equipment according to claim 1, characterized in that: The portion of the connecting pipe (9) extending into the interior of the outer box (2) is sleeved with a sealing rubber ring (12), and the sealing rubber ring (12) is sealedly connected to the detection device body (7).

6. The power plant flue gas online detection device according to any one of claims 1 to 5, characterized in that: The outer box (2) has a disassembly opening for disassembly and assembly of the detection device body (7), and the disassembly and assembly opening is provided with an openable and closable protective door (15).

7. The power plant flue gas online detection device according to claim 6, characterized in that: The first end of the protective door (15) is hinged to the outer box (2), the second end of the protective door (15) is fixedly connected to a first external connection plate (20), and the outer box (2) is provided with a second external connection plate (29) corresponding to the first external connection plate (20); The bottoms of the first external connection plate (20) and the second external connection plate (29) are both fixedly connected to a fixing seat (23), one of the fixing seats (23) is movably connected to a limiting frame (27), a movable end of the limiting frame (27) is provided with an embedding portion (30), and the other fixing seat (23) is provided with an embedding groove for the embedding portion (30) to be inserted into when the protective door (15) is closed.

8. The power plant flue gas online detection device according to claim 7, characterized in that: The limiting frame (27) is a flexible elastic member, the embedding portion (30) is arranged on a side of the limiting frame (27) facing the embedding groove, and a hard push-pull plate (28) is arranged on a side of the limiting frame (27) facing away from the embedding portion (30); and / or, A first control panel (13) is provided on the side of the detection device body (7) facing the disassembly and assembly port, a control button (14) is provided at the bottom of the first control panel (13), and a transparent window (17) penetrating the wall thickness of the protection door (15) is provided at a position corresponding to the first control panel (13).

9. The power plant flue gas online detection device according to any one of claims 1 to 5, characterized in that: The outer box (2) is fixed with a fixing plate (5), the fixing plate (5) passes through the outer box (2) and is attached to the detection device body (7); An alarm (4) is fixed on the fixing plate (5); the alarm (4) is located outside the outer box (2) and is used to sound an alarm when a fire occurs in the detection device body (7).

10. The power plant flue gas online detection device according to claim 9, characterized in that: Connecting plates (3) are provided at both ends of the fixing plate (5), and fastening holes are provided on the connecting plates (3) so as to be fastened to the outer box body (2) by means of mounting bolts (6) passing through the fastening holes, and a knob (26) is fixedly connected to the outer end of the mounting bolt (6); The fixing plate (5) is provided with a connecting head (16), and the alarm (4) is fixed on the connecting head (16).

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