Fire grate segment temperature measuring device

Abstract

The utility model discloses a fire grate segment temperature measuring device which comprises an ash bucket, a fire grate, a thermocouple wire, an end fixing structure, a fire grate sleeve and a fixing piece. The fire grate is installed on the ash bucket, the end fixing structure is arranged on one side wall of the ash bucket, the multiple fixing pieces are arranged and used for achieving fixed supporting during wiring of thermocouple wires, and the fire grate sleeve is installed on one fire grate segment of the fire grate; the fixing piece comprises a long plate, an L-shaped hole is formed in the long plate, and the L-shaped hole penetrates through one long edge of the long plate; and the thermocouple wire sequentially penetrates through the end part fixing structure, the L-shaped hole of the fixing piece and the fire grate sleeve. According to the fire grate segment temperature measuring device, the thermocouple wire can be finely adjusted in the L-shaped hole, even if thermal expansion and cold contraction occur, the thermocouple wire can be finely adjusted to be in a normal safety state, the thermocouple wire can be separated from the opening position through which the L-shaped hole penetrates in the maintenance process, the whole thermocouple wire can be disassembled without being pulled, and compared with the prior art, the thermocouple wire is convenient to disassemble and assemble. The dismounting and the mounting are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of grate temperature measurement, in particular to a grate plate temperature measuring device. Background Art

[0002] Most waste incinerators use mechanical grates. During operation, the surface temperature of the grate fins must be monitored to determine the combustion status of the material layer within the furnace and adjust the grate cooling air volume. Because the grate fins are at the bottom layer of the material within the furnace, temperature measurement is typically performed by inserting armored thermocouples underneath the fins. Armored thermocouples offer flexibility, high mechanical strength, and fast thermal response. These grate fins consist of armored thermocouple wire, a fixed connector (threaded or flanged), and a terminal box.

[0003] Because temperature sampling points should be selected in typical combustion areas, the grate bars for temperature sampling are usually placed in the middle of the furnace width. The terminal box for the armored thermocouple can generally only be installed on the ash hopper shell below the grate, where the temperature is lower. The distance between the terminal box and the measurement point is several meters. For example, in one installation method, a circular fixing ring is used to install the thermocouple wire, and the end of the thermocouple wire is fixed below the grate bar. During construction and installation, the thermocouple wire may be improperly bent, improperly routed, and loosely fixed, making it susceptible to mechanical damage and excessive stretching. In addition, due to the relatively narrow installation space, the thermocouple wire can only be pulled out of the fixing ring during routine maintenance. The excessive length of the thermocouple wire makes it difficult to pull out, which means that it is difficult to remove. The installation space below the grate bar is very narrow, and removing the thermocouple wire from under the grate bar is also time-consuming, labor-intensive, and inconvenient.

[0004] Therefore, it is urgent to design a new and better grate temperature measuring device. Utility Model Content

[0005] In view of the above problems existing in the prior art, a grate plate temperature measuring device is provided.

[0006] The specific technical solutions are as follows:

[0007] A grate plate temperature measuring device mainly includes: an ash hopper, a grate device, a thermocouple wire, an end fixing structure, a grate side sleeve and a fixing piece;

[0008] The grate device is installed above the ash hopper, the end fixing structure is provided on a side wall of the ash hopper, a plurality of fixing members are provided, and the fixing members are used to achieve fixed support when the thermocouple wire is routed, and the grate side sleeve is installed on one of the grate plates of the grate device;

[0009] Wherein, the fixing member comprises an elongated plate, the elongated plate is provided with an L-shaped hole, and the L-shaped hole passes through one long side of the elongated plate;

[0010] The thermocouple wire is sequentially passed through the end fixing structure, the L-shaped hole of the fixing member and the grate side sleeve.

[0011] The above-mentioned grate plate temperature measuring device also has such a feature that the end fixing structure includes a terminal box, an end sleeve and a mounting flange;

[0012] The end sleeve is mounted on the mounting flange, and the terminal box is connected to the mounting flange. The thermocouple wire is passed through the end sleeve and connected to the terminal box.

[0013] The above-mentioned grate plate temperature measuring device also has the following feature: the end sleeve is provided with a flange plate, and the flange plate is connected to the mounting flange.

[0014] The above-mentioned grate plate temperature measuring device also has the following characteristics: an inclined hole is opened on one of the grate plates, the inclined hole is inclined upward from the bottom of the grate plate, and the grate side sleeve is installed in the inclined hole.

[0015] The above-mentioned one also has such a feature that the grate side sleeve is an internal threaded hole, and the thermocouple wire is fixed in the grate side sleeve through a ferrule-type external threaded joint.

[0016] The above-mentioned grate plate temperature measuring device also has the following characteristics: a fixing piece is provided at each of the two ends of the bent thermocouple wire, and the fixing piece can also be provided at the straight section of the thermocouple wire.

[0017] The above-mentioned grate plate temperature measuring device also has such a feature that the fixing member also includes a stopper plate, and the stopper plate is fitted with one side of the elongated plate to seal the opening through which the L-shaped hole passes.

[0018] The positive effects of the above technical solution are:

[0019] The utility model provides a grate temperature measuring device with an L-shaped hole fixing part. The thermocouple wire can be fine-tuned in the L-shaped hole. Even if thermal expansion and contraction occur, the thermocouple wire can be fine-tuned to keep itself in a normal and safe state. During maintenance, the thermocouple wire can be removed from the opening position passing through the L-shaped hole. There is no need to pull and remove the entire thermocouple wire. Compared with the existing technology, the device is easy to disassemble and install. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the top view of a grate plate temperature measuring device provided by the utility model;

[0021] Figure 2 for Figure 1Schematic diagram of the cross-section structure along the AA direction;

[0022] Figure 3 for Figure 1 Schematic diagram of the cross-section structure along the BB direction;

[0023] Figure 4 This is a schematic structural diagram of the fixing member of the present invention.

[0024] In the accompanying drawings: 1. Ash hopper; 2. Grate equipment; 21. Grate plate; 211. Inclined hole; 3. Thermocouple wire; 31. First section; 32. Second section; 33. Third section; 34. Fourth section; 35. Fifth section; 36. Sixth section; 4. Terminal box; 5. End sleeve; 51. Flange plate; 6. Mounting flange; 7. Grate side sleeve; 8. Fixing part; 81. Long plate; 811. L-shaped hole; 812. Long side; 813. Short side; 82. Stopper. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0026] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present utility model, it should be understood that the orientation or position relationship indicated by the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model.

[0027] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0028] See also Figures 1 to 4 , wherein C in the figure is the center of the furnace, the utility model discloses a grate plate temperature measuring device, comprising: an ash hopper 1, a grate device 2, a thermocouple wire 3, an end fixing structure, a grate side sleeve 7 and a fixing member 8;

[0029] The grate device 2 is installed above the ash hopper 1 , and the end fixing structure is set on a side wall of the ash hopper 1 .

[0030] The grate device 2 mainly includes a plurality of grate plates 21 arranged according to preset rules, and of course also includes other structures. The specific structure of the grate device 2 can refer to the existing technology and will not be described here in detail.

[0031] Optionally, the end fixing structure includes a terminal box 4, an end sleeve 5 and a mounting flange 6;

[0032] The end sleeve 5 is mounted on the mounting flange 6 , and the terminal box 4 is connected to the mounting flange 6 . The thermocouple wire 3 is passed through the end sleeve 5 and connected to the terminal box 4 .

[0033] Optionally, the thermocouple wire 3 may be an armored thermocouple wire 3 . The armored thermocouple wire means that the thermocouple wire is provided with a layer of protection, and only the armor is flexible and bendable. The armor is the outer structure of the thermocouple wire 3 , not the type of the thermocouple wire.

[0034] Optionally, in this embodiment, the end sleeve 5 has a flange plate 51, and the flange plate 51 is connected to the mounting flange 6. Optionally, the flange plate 51 is fitted with the mounting flange 6 and connected by fasteners such as bolts, rivets or screws.

[0035] There are several fixing members 8, which are used to provide fixed support for the thermocouple wire 3 when it is being routed.

[0036] Among them, in this embodiment, the fixing member 8 includes a long plate 81, and the long plate 81 has two long sides 812 and two short sides 813. Optionally, the long plate 81 can be a rectangle, or a structure consisting of a rectangle plus a semicircle. For example, in this embodiment, the long plate 81 is a structure consisting of a rectangle plus a semicircle (the side corresponding to the semicircle is also the short side 813), and the long plate 81 is provided with an L-shaped hole 811, which passes through one long side 812 of the long plate 81.

[0037] The thermocouple wire 3 is sequentially passed through the end fixing structure, the L-shaped hole 811 of the fixing member 8 and the grate side sleeve 7.

[0038] In this embodiment, the grate side sleeve 7 is installed on one of the grate plates 21 of the grate equipment 2 .

[0039] Optionally, in this embodiment, an inclined hole 211 is provided on one of the grate plates 21, and the inclined hole 211 is inclined upward from the bottom of the grate plate 21, and the grate side sleeve 7 is installed in the inclined hole 211. This arrangement allows the thermocouple wire 3 to be in close contact with the lower surface of the grate plate 21. Optionally, the grate side sleeve 7 and the inner wall of the inclined hole 211 can be fixedly connected by welding or other methods. The inclined hole 211 does not penetrate the upper surface of the grate plate 21 (the surface on which the product is placed), and the inclined hole 211 stops at a place several millimeters away from the upper surface. If the inclined hole 211 penetrates the upper surface of the grate plate 21, the thermocouple wire 3 will contact the product placed on the grate plate 21, and measurement cannot be performed.

[0040] Optionally, the grate side sleeve 7 is an internal threaded hole, and the grate side sleeve 7 is fixed inside the grate side sleeve 7 through a sleeve-type external threaded joint.

[0041] Optionally, in this embodiment, a fixing member 8 is provided at each of the two bent ends of the thermocouple wire 3 , and a fixing member 8 may also be provided at the straight section of the thermocouple wire 3 .

[0042] Specifically, in this embodiment, the thermocouple wire 3 is bent into 6 sections, namely the first section 31, the second section 32, the third section 33, the fourth section 34, the fifth section 35 and the sixth section 36. Figure 2 As shown, the first section 31 is along the horizontal direction and parallel to the width direction of the grate device 2, the second section 32 is along the vertical direction and points to the grate device 2, the third section 33 is along the horizontal direction, wherein the direction of the third section 33 is perpendicular to the direction of the first section 31, and the third section 33 extends along the length direction of the grate device 2, the fourth section 34 is along the horizontal direction and extends along the width direction of the grate device 2, the fifth section 35 is along the vertical direction, and the sixth section 36 is a bending line and extends along the length direction of the grate device 2. The bending direction of the thermocouple wire 3 is three-dimensional. In order to achieve a better fit between the thermocouple wire 3 and the grate device 2 when it is routed, and to reduce the influence of thermal expansion and contraction as much as possible, in this embodiment, the setting direction of the fixing member 8 is very important. For example, Figure 1 As shown, the short sides of the long plates 81 of the two fixing members 8 on the third section 33 are in contact with the side wall of the ash hopper 1, and the long sides 812 of the long plates 81 of the two fixing members 8 on the third section 33 are directed toward the grate device 2. At this time, the L-shaped hole 811 can be fine-tuned in the direction between the ash hopper 1 and the grate device 2, so that the thermocouple wire 3 can be as close to the grate device 2 as possible to achieve detection effectiveness; Figure 1 and Figure 2 As shown, the long side of the elongated plate 81 of the fixing part 8 on the fourth section 34 is perpendicular to the bottom surface of the grate device 2. At this time, the hole of the L-shaped hole 811 can be fine-tuned in the direction perpendicular to the bottom surface of the grate device 2, so that the thermocouple wire 3 can be as close to the grate device 2 as possible to achieve the effectiveness of the detection.

[0043] The present invention provides a grate temperature measuring device, which has a fixing part 8 with an L-shaped hole 811. The thermocouple wire 3 can be fine-tuned in the L-shaped hole 811. Even if thermal expansion and contraction occur, the thermocouple wire 3 can be fine-tuned to keep itself in a normal and safe state. During maintenance, the thermocouple wire 3 can be detached from the opening position passing through the L-shaped hole 811, and there is no need to pull and remove the entire thermocouple wire 3. Compared with the existing technology, the device is easy to disassemble and install.

[0044] Optionally, in some embodiments, the fixing member 8 further includes a stopper 82 , which is fitted onto one side of the elongated plate 81 to seal the opening through which the L-shaped hole 811 passes to prevent the thermocouple wire 3 from falling out.

[0045] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0046] The above-described embodiments merely represent several implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A grate temperature measuring device, characterized in that: include: Ash hopper, grate equipment, thermocouple wire, end fixing structure, grate side casing and fixing parts; The grate device is installed above the ash hopper, the end fixing structure is provided on a side wall of the ash hopper, a plurality of fixing members are provided, and the fixing members are used to achieve fixed support when the thermocouple wire is routed, and the grate side sleeve is installed on one of the grate plates of the grate device; Wherein, the fixing member comprises an elongated plate, the elongated plate is provided with an L-shaped hole, and the L-shaped hole passes through one long side of the elongated plate; The thermocouple wire is sequentially passed through the end fixing structure, the L-shaped hole of the fixing member and the grate side sleeve.

2. The grate temperature measuring device according to claim 1, characterized in that: The end fixing structure includes a terminal box, an end sleeve and a mounting flange; The end sleeve is mounted on the mounting flange, and the terminal box is connected to the mounting flange. The thermocouple wire is passed through the end sleeve and connected to the terminal box.

3. The grate temperature measuring device according to claim 2, characterized in that: The end sleeve is provided with a flange plate, and the flange plate is connected to the mounting flange.

4. The grate temperature measuring device according to any one of claims 1 to 3, characterized in that: An inclined hole is opened on one of the grate pieces, and the inclined hole is inclined upward from the bottom of the grate piece, and the grate side sleeve is installed in the inclined hole.

5. The grate temperature measuring device according to claim 4, characterized in that: The grate side sleeve is an internal threaded hole, and the thermocouple wire is fixed in the grate side sleeve through a ferrule-type external threaded joint.

6. The grate temperature measuring device according to any one of claims 1 to 3, characterized in that: The two ends of the bent thermocouple wire are each provided with a fixing member, and the straight section of the thermocouple wire may also be provided with a fixing member.

7. The grate temperature measuring device according to any one of claims 1 to 3, characterized in that: The fixing member further includes a stopper, which is fitted with one side of the elongated plate and is used to seal the opening through which the L-shaped hole passes.

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