Hearth flame detection device

Abstract

The utility model relates to a hearth flame detection device which comprises a light-transmitting part and a supporting part, and the supporting part is arranged on the light-transmitting part and keeps universal adjustment relative to the light-transmitting part. One end of the light-guide fiber is detachably connected with the probe, and the other end of the light-guide fiber is detachably and fixedly connected with the supporting part. According to the utility model, through the universal adjustment arrangement of the supporting part relative to the light-transmitting part, when the light-transmitting part is fixed at the mounting hole of the furnace wall, the light-transmitting part can drive the end part of the light-guide fiber to carry out universal adjustment so as to realize direction adjustment, so that universal adjustment of the lighting direction of the probe is realized; according to the utility model, the angle correction is simpler in the installation process, and the installation efficiency is higher as a worker can operate outside the hearth.

Description

Technical Field

[0001] The utility model belongs to the technical field of boiler flame detection equipment, and specifically relates to a furnace flame detection device. Background Art

[0002] Flame detection equipment is a key device in the boiler furnace safety monitoring system, and its function is to detect the combustion condition in real time according to the combustion characteristics of the flame. Once the flame combustion state does not meet the normal conditions or goes out, the detection equipment will give a signal in a certain way to ensure that the fuel supply stops when the boiler extinguishes, thus preventing the occurrence of serious accidents such as boiler explosion caused by the accumulation of fuel in the furnace.

[0003] The flame detection equipment mainly consists of a light detection probe and a signal processing part and other structures, and the two are usually of an integrated structure. In the related technology, the probe is connected to an optical fiber and extends into the furnace. Due to the high temperature formed during combustion in the furnace, the optical fiber will be damaged after long-term use, so it needs to be replaced regularly. The common problem in the existing technology is that when installing a new optical fiber, due to the fixed angle of the installation hole on the furnace wall, it is usually difficult to adjust and align the angle of the optical fiber, and it is necessary for personnel to enter the furnace for calibration operations, resulting in a more cumbersome installation process. Summary of the Utility Model

[0004] The purpose of this part is to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this part, as well as in the abstract and the title of the utility model of this application, to avoid obscuring the purpose of this part, the abstract, and the title of the utility model. However, such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In view of the following technical problems in the existing technology: due to the limitation of the structure, the angle calibration process of the new optical fiber is more cumbersome during the installation process. To solve this technical problem, the utility model provides the following technical solutions:

[0006] A furnace flame detection device, comprising:

[0007] A light-transmitting part and a supporting part, the supporting part is arranged on the light-transmitting part and can be adjusted in all directions relative to the light-transmitting part;

[0008] A probe and an optical fiber, one end of the optical fiber is detachably connected to the probe, and the other end is detachably and fixedly connected to the supporting part.

[0009] As a preferred technical solution of the furnace flame detection device, it further includes a fixing cover, which is of a through structure and penetrates the furnace wall. The light-transmitting part covers one end of the fixing cover, and the probe is detachably and fixedly arranged at the other end of the fixing cover.

[0010] As a preferred technical solution of the furnace flame detection device, an inner spherical surface is constructed on one side of the light-transmitting part, and an outer spherical surface is constructed on the supporting part, which is adapted to the inner spherical surface.

[0011] As a preferred technical solution of the furnace flame detection device, it further includes a connecting part. A tightening end is constructed on the fixed cover. The connecting part is detachably connected to the fixed cover and cooperates with the tightening end to lock the probe.

[0012] As a preferred technical solution of the furnace flame detection device, a pressure ring is arranged on the periphery of the probe. One end of the probe abuts against the tightening end, and the connecting part applies a force to the pressure ring.

[0013] As a preferred technical solution of the furnace flame detection device, an adjusting rod is slidably arranged on the connecting part. One end of it extends into the light-transmitting part and acts on the supporting part.

[0014] As a preferred technical solution of the furnace flame detection device, the supporting part includes a supporting ring, a sleeve, and a plurality of supporting branches fixedly connected between the supporting ring and the sleeve. The plurality of supporting branches are annularly and arrayedly distributed with the sleeve as the center. The outer spherical surface is located on the supporting ring. The optical fiber is in plug-in fit with the sleeve. One end of the adjusting rod is constructed with a tiger's mouth, which acts on the supporting branch.

[0015] As a preferred technical solution of the furnace flame detection device, a roller is rotatably arranged inside the tiger's mouth, which contacts the supporting branch.

[0016] As a preferred technical solution of the furnace flame detection device, the two sides of the light-transmitting part are kept communicating with each other. An air inlet is arranged on the fixed cover. The inside and outside of the fixed cover are kept in communication through the air inlet.

[0017] The beneficial effect of the furnace flame detection device provided by the present utility model is that through the universal adjustment setting of the supporting part relative to the light-transmitting part, when the light-transmitting part is fixed at the furnace wall mounting hole, it can drive the end of the optical fiber to perform universal adjustment to realize the adjustment of the direction, so as to realize the universal adjustment of the light-gathering direction of the probe. Compared with the prior art, the angle calibration during the installation process of the present utility model is simpler, and the personnel can operate outside the furnace, making the installation efficiency higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained according to these drawings without creative efforts. Among them:

[0019] Figure 1 It is a three-dimensional diagram of one embodiment of the utility model.

[0020] Figure 2 About Figure 1 Exploded diagram of the structure shown.

[0021] Figure 3 About Figure 2 Another perspective view of .

[0022] Figure 4 About Figure 1 An internal representation of the structure shown.

[0023] Figure 5 About Figure 4 Cross-sectional perspective diagram.

[0024] Figure 6 About Figure 1 A separate illustration of the structure shown in the middle.

[0025] Figure 7 It is a three-dimensional diagram of another embodiment of the utility model.

[0026] Figure 8 About Figure 7 A cross-sectional view of the middle structure.

[0027] Figure numerals: 1, light-transmitting part; 2, supporting part; 201, supporting ring; 202, casing; 203, branch; 3, probe; 4, optical fiber; 5, fixing cover; 6, inner spherical surface; 7, outer spherical surface; 8, connecting part; 9, tightening end; 10, pressing ring; 11, adjusting rod; 12, tiger's mouth; 13, roller; 14, through-opening; 15, air inlet. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0029] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0030] Secondly, the so-called "one embodiment" or "embodiment" herein refers to specific features, structures or characteristics that may be included in at least one implementation manner of the present utility model. The "in one embodiment" appearing in different places in this specification does not all refer to the same embodiment, nor is it an individual or selectively mutually exclusive embodiment with other embodiments.

[0031] Thirdly, the present utility model is described in detail in conjunction with schematic diagrams. When detailing the embodiments of the present utility model, for the convenience of description, the cross-sectional views showing the device structure will be enlarged locally in a non-general proportion, and the schematic diagrams are only examples and should not limit the scope of protection of the present utility model herein. In addition, in actual production, three-dimensional spatial dimensions including length, width and depth should be included.

[0032] Embodiment 1

[0033] Referring to Figures 1-5 , the present utility model provides a furnace flame detection device. The device includes a device part for realizing light detection, which includes a probe 3 and a signal processing part. In addition, the device further includes the following parts:

[0034] A light-transmitting part 1 and a supporting part 2. The light-transmitting part 1 is in a lid-like or cover-like structure and is made of transparent material. The supporting part 2 is arranged on the light-transmitting part 1 and can be adjusted in all directions relative to the light-transmitting part 1;

[0035] An optical fiber 4. One end of the optical fiber 4 is configured to be docked with the probe 3 and can be separated from each other. The other end of the optical fiber 4 is detachably fixedly connected to the supporting part 2;

[0036] Above, when the present utility model is installed, the light-transmitting part 1, the optical fiber 4 and the probe 3 are sequentially distributed along the furnace wall thickness direction in the installation hole of the furnace wall. The light-transmitting part 1 covers the end of the installation hole to achieve the isolation effect between the inside and outside of the furnace wall. When installing the optical fiber 4, one end of the optical fiber 4 is connected to the supporting part 2 and the other end is docked with the probe 3. Then, the entire installation process is completed by fixing the probe 3. When the light is transmitted, it passes through the light-transmitting part 1 and then is transmitted to the probe 3 through the optical fiber 4; when calibrating the direction of one end of the optical fiber 4, the direction of the supporting part 2 can be adjusted to achieve this. For this adjustment process, the supporting part 2 can be pushed by means of a component extending from the outside of the furnace wall into the light-transmitting part 1; compared with the prior art, the present utility model is simpler in adjusting the direction of the light-collecting end of the optical fiber 4 and does not require operations inside the furnace, thereby effectively improving the overall installation efficiency;

[0037] Specifically, for the assembly method between the optical fiber 4 and the probe 3, the end of the probe 3 is in a socket-like structure, and the optical fiber 4 is in plug-in fit with it.

[0038] Further, referring to Figures 1-5 , for the overall assembly of the present utility model, the present utility model further includes a fixing cover 5, which has a through-shaped structure and a length greater than the thickness of the furnace wall. The fixing cover 5 can adopt a cylindrical structure, etc., and its diameter is set to be adapted to the diameter of the mounting hole of the furnace wall. When the whole device is installed, the fixing cover 5 penetrates into the mounting hole, thereby blocking the mounting hole. The light-transmitting part 1 covers one end of the fixing cover 5, so as to achieve the effect of covering the mounting hole. The probe 3 is detachably fixed to the other end of the fixing cover 5, thereby realizing the assembly effect of the whole device and avoiding the fragmentation of the structure. After the combined structure formed between the light-transmitting part 1 and the fixing cover 5 is installed on the furnace wall mounting hole, when the optical fiber 4 is replaced next time, only the probe 3 and the optical fiber 4 need to be disassembled, and the fixing cover 5 and the light-transmitting part 1 do not need to be removed, thereby further simplifying the installation process.

[0039] Further, referring to Figures 2-6 , for the universal adjustment between the support part 2 and the light-transmitting part 1, specifically: an inner spherical surface 6 is formed on one side of the light-transmitting part 1, and an outer spherical surface 7 is also formed on the support part 2. The outer spherical surface 7 is in contact with the inner spherical surface 6 to achieve the effect of spherical connection, so as to realize the universal adjustment of the support part 2 inside the light-transmitting part 1.

[0040] Further, referring to Figures 2-5 , for the fixing method of the probe 3, the present utility model further includes a connecting part 8. Specifically, a tightening end 9 is formed on the fixing cover 5. The connecting part 8 and the fixing cover 5 are detachably connected, and the connecting part 8 can cooperate with the tightening end 9 to clamp and lock the probe 3, thereby realizing the fixing of the probe 3 on the fixing cover 5. When the connecting part 8 is removed from the fixing cover 5, the fixing of the probe 3 on the fixing cover 5 is released. The connecting part 8 has an annular plate structure, so that it can also cover the end of the fixing cover 5 in cooperation with the probe 3. This covering effect, combined with the covering of the light-transmitting part 1, forms a sealed cavity inside the fixing cover 5, thereby achieving the effect of isolating heat transfer and reducing the heat transfer from the furnace chamber to the outside. The disassembly and assembly method between the connecting part 8 and the fixing cover 5 can be realized by a bolt assembly.

[0041] Further, referring to Figures 2-5 , for the method of the tightening end 9 cooperating with the connecting part 8 to lock the probe 3, specifically, a pressing ring 10 is fixedly arranged on the periphery of the probe 3. When the connecting part 8 is installed on the fixing cover 5, the edge of the end of the probe 3 abuts against the tightening end 9, and the connecting part 8 simultaneously presses on the pressing ring 10, thereby cooperating with the tightening end 9 to clamp the probe 3. The method of the pressing ring 10 cooperating with the connecting part 8 can further increase the sealing effect when the probe 3 and the connecting part 8 cover the end of the fixing cover 5.

[0042] Further, referring to Figures 2-5 , when the connecting part 8 is used as the installation carrier, a plurality of adjusting rods 11 can be slidably arranged thereon, and the sliding direction thereof is consistent with the length direction of the fixed cover 5. One end of the adjusting rod 11 extends into the light-transmitting part 1 and can push the supporting part 2 to achieve the effect of universal adjustment of the supporting part 2. The other end of the adjusting rod 11 is located outside the sealing cavity, so as to facilitate touching it.

[0043] Further, referring to Figure 6 , the supporting part 2 includes a supporting ring 201, a sleeve 202, and a plurality of supporting branches 203 fixedly connected between the supporting ring 201 and the sleeve 202. The plurality of supporting branches 203 are annularly and arrayedly distributed with the sleeve 202 as the center. The outer spherical surface 7 is located on the supporting ring 201, and the end of the optical fiber 4 is in plug-in fit with the sleeve 202 to keep the end of the optical fiber 4 in the central area inside the light-transmitting part 1. One end of the adjusting rod 11 is configured with a tiger's mouth 12, and the supporting branch 203 is located in the tiger's mouth 12. When the adjusting rod 11 is pushed, the inner side of the tiger's mouth 12 forms a push on the supporting branch 203, thereby completing the adjustment of the entire supporting part 2. The setting of the tiger's mouth 12 in cooperation with the supporting branch 203 makes it difficult for the end of the adjusting rod 11 to be separated from the supporting branch 203 when the whole supporting part 2 is adjusted.

[0044] Further, referring to Figure 6 , a roller 13 is rotatably arranged on the inner side of the tiger's mouth 12, and the roller 13 is used to contact the supporting branch 203, so that when the inner side wall of the tiger's mouth 12 forms an interaction force with the supporting branch 203, the friction between the two can be reduced to reduce the resistance during the adjustment process.

[0045] Embodiment 2

[0046] The utility model provides a furnace flame detection device. Different from Embodiment 1, a through design is adopted between the two sides of the light-transmitting part 1, so that the inside of the fixed cover 5 is kept in communication with the inside of the furnace, and a part for air intake is arranged on the fixed cover 5. During actual use, cooling air can be input into the fixed cover 5 through the air intake part, so that the cooling air enters the furnace from the light-transmitting part 1. The cooling air can better dissipate heat from the optical fiber 4. Since the cooling air blows from the outside into the furnace, it can effectively prevent heat from being transferred to the inside of the fixed cover 5, thereby playing a heat insulation effect on the probe 3.

[0047] Regarding the structures of the light-transmitting part 1 and the fixed cover 5 in this embodiment, specifically, as Figure 7 and Figure 8As shown, the front end of the light-transmitting part 1 is provided with a through hole 14. The through hole 14 can keep the two sides of the light-removing part 1 communicating with each other. The through hole 14 can facilitate the direct irradiation of the light of the flame in the furnace onto the optical fiber 4, thereby increasing the accuracy of the optical fiber 4 when collecting light. In addition, the length of the fixing cover 5 is increased compared with that in Embodiment 1, and an air inlet 15 is formed at a position near one end of its circumferential side. The air inlet 15 is used for the entry of cooling air.

[0048] It should be understood that in the development process of any actual implementation, such as in any engineering or design project, a large number of specific implementation decisions can be made. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, without excessive experimentation, such development efforts will be a routine task of design, manufacturing, and production.

[0049] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A furnace flame detection device, characterized in that: include: A light-transmitting portion (1) and a supporting portion (2), wherein the supporting portion (2) is arranged on the light-transmitting portion (1) and is universally adjustable relative to the light-transmitting portion (1); A probe (3) and an optical fiber (4), wherein one end of the optical fiber (4) is detachably connected to the probe (3), and the other end is detachably fixedly connected to the support portion (2).

2. The furnace flame detection device according to claim 1, characterized in that: It also comprises a fixed cover (5) which is of a through-type structure and is arranged to penetrate the furnace wall; the light-transmitting portion (1) is sealed at one end of the fixed cover (5); and the probe (3) is detachably fixedly arranged at the other end of the fixed cover (5).

3. The furnace flame detection device according to claim 2, characterized in that: An inner spherical surface (6) is constructed on one side of the light-transmitting portion (1), and an outer spherical surface (7) is constructed on the supporting portion (2) and is matched with the inner spherical surface (6).

4. The furnace flame detection device according to claim 3, characterized in that: It also comprises a connecting portion (8), and a tightening end (9) is configured on the fixing cover (5). The connecting portion (8) is detachably connected to the fixing cover (5), and cooperates with the tightening end (9) to lock the probe (3).

5. The furnace flame detection device according to claim 4, characterized in that: A pressure ring (10) is provided on the peripheral side of the probe (3), one end of the probe (3) abuts against the abutting end (9), and the connecting portion (8) applies force to the pressure ring (10).

6. The furnace flame detection device according to claim 4, characterized in that: An adjusting rod (11) is slidably arranged on the connecting portion (8), one end of which extends into the light-transmitting portion (1) and acts on the supporting portion (2).

7. The furnace flame detection device according to claim 6, characterized in that: The support portion (2) comprises a support ring (201), a casing (202), and a plurality of branches (203) fixedly connected between the support ring (201) and the casing (202); the plurality of branches (203) are distributed in a ring array with the casing (202) as the center; the outer spherical surface (7) is located on the support ring (201); the optical fiber (4) and the casing (202) are plug-fitted; and a thumb's mouth (12) is configured at one end of the adjustment rod (11) to act on the branch (203).

8. The furnace flame detection device according to claim 7, characterized in that: A roller (13) is rotatably arranged inside the jaws (12) and contacts the branch (203).

9. The furnace flame detection device according to claim 4, characterized in that: The two sides of the light-transmitting portion (1) are connected to each other, an air inlet (15) is provided on the fixed cover (5), and the inside and outside of the fixed cover (5) are connected via the air inlet (15).

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