Temperature measuring resistance for inner wall of boiler

Abstract

The application provides a boiler inner wall temperature measuring thermal resistance, and belongs to the field of temperature measuring devices, to solve the problem of inconvenient buffering protection of the thermal resistance, comprising a junction box, a wire tube is fixedly connected to the junction box, a connecting plate is fixedly connected to the junction box, the other end of the first spring is fixedly connected to a limiting plate, a clamping block is fixedly connected to the limiting plate, a pull rod is fixedly connected to the limiting plate, a protection tube is fixedly connected to the mounting box, a second spring is fixedly connected in the mounting box, and a support plate is fixedly connected to one end of the second spring. The application is provided with a mounting box; when the protection tube of the equipment collides with the inner wall of the boiler, the installed impact frame can move into the mounting box through the connecting rod extruding the support plate, and the support plate can extrude the second spring, which can buffer and reset the impact frame under the pushing of the second spring, so as to play a protection role and avoid damage caused by impact.

Description

Technical Field

[0001] This utility model relates to the field of temperature measuring devices, and more specifically, to a thermal resistor for measuring the temperature of the inner wall of a boiler. Background Technology

[0002] Boiler internal wall temperature measuring resistors are mainly used for real-time monitoring of the temperature of critical boiler components such as the furnace wall and pipe walls. When current passes through the resistor, the resistance value changes with temperature; this change is only related to the resistor's temperature and not to the magnitude of the current. By measuring the change in resistance value, the ambient temperature can be calculated, ensuring the boiler operates within a safe temperature range and avoiding efficiency losses and safety accidents.

[0003] Currently, most boiler internal wall temperature measuring resistance thermometers have the following problems:

[0004] For example, the leak-proof oil-measuring resistance temperature detector (RTD) with publication number 202220354101.9, although protected by an installed protective tube, is prone to bending and damage after prolonged use due to the tube being fixed to the equipment. Disassembling the protective tube is cumbersome, affecting subsequent use and hindering convenient installation and removal. Furthermore, existing boiler inner wall temperature measuring RTDs are prone to collisions with the boiler inner wall during installation and use. When the boiler is moved, the RTD shakes, potentially damaging the equipment and affecting its performance, making it difficult to provide buffer protection for the RTD.

[0005] Therefore, we have made improvements to this and proposed a boiler inner wall temperature measuring resistance thermometer. Utility Model Content

[0006] The purpose of this utility model is to address the current problems of inconvenience in easily disassembling and installing the protective tube, and inconvenience in providing buffer protection for the thermal resistor.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] The above problems can be improved by measuring the resistance temperature of the boiler inner wall.

[0009] The application is as follows:

[0010] The device includes a junction box, a conduit fixedly connected to the junction box, a connecting plate fixedly connected to the junction box, a protective tube on the connecting plate, a connecting wire inside the protective tube, a thermal resistor installed on the connecting wire, a positioning plate fixedly connected to the protective tube, a first spring fixedly connected to the connecting plate, a limit plate fixedly connected to the other end of the first spring, a locking block fixedly connected to the limit plate, a pull rod fixedly connected to the limit plate, a mounting box fixedly connected to the protective tube, an air hole on the mounting box, a second spring fixedly connected to the mounting box, and a support plate fixedly connected to one end of the second spring.

[0011] As a preferred technical solution of this application, the top surface of the positioning plate is inclined, and the side end surface of the limiting plate is in contact with the inner side surface of the connecting plate.

[0012] As a preferred technical solution of this application, the first spring is symmetrically distributed on the left and right sides of the connecting plate, and the first spring corresponds to the card block one by one through the limiting plate.

[0013] As a preferred technical solution of this application, the cross-section of the card block is an isosceles triangle, and the length of the card block is less than the length of the pull rod.

[0014] As a preferred technical solution of this application, a connecting rod is fixedly connected to the support plate, and an impact frame is fixedly connected to the connecting rod. The impact frame has a "C" shaped cross-section.

[0015] As a preferred technical solution of this application, the second spring is distributed at equal angles inside the mounting box, and the second spring corresponds one-to-one with the connecting rod through the support plate.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] In the scheme of this application:

[0018] 1. A positioning plate is provided; when disassembling the protective tube, the pull rods on both sides of the connecting plate can be pulled to move the limiting plate. The limiting plate can compress the first spring, and at the same time, the limiting plate drives the locking block to disengage from the positioning plate and retract into the connecting plate. After being unobstructed, the protective tube and the positioning plate can be disassembled and removed, which can be replaced and disassembled, improving the disassembly and installation effect.

[0019] 2. An installation box is provided; when the protective pipe of the equipment collides with the inner wall of the boiler, the impact frame can be pushed into the installation box by the connecting rod. At the same time, the support plate can be squeezed by the second spring. Under the push of the second spring, the impact frame can be buffered and reset, which can play a protective role and avoid damage caused by shaking and impact. Attached Figure Description

[0020] Figure 1A schematic diagram of the overall three-dimensional structure of the boiler inner wall temperature measuring resistance provided in this application;

[0021] Figure 2 A side view of the connection plate of the boiler inner wall temperature measuring resistance thermometer provided in this application;

[0022] Figure 3 The boiler inner wall temperature measuring resistance provided in this application Figure 2 Enlarged structural diagram at point A in the middle;

[0023] Figure 4 A side view of the protective tube structure of the boiler inner wall temperature measuring resistance thermometer provided in this application;

[0024] Figure 5 A top view of the mounting box for the boiler inner wall temperature measuring resistance thermometer provided in this application.

[0025] The diagram shows: 1. Junction box; 2. Conduit; 3. Connecting plate; 4. Protective tube; 5. Connecting wire; 6. Thermostat; 7. Positioning plate; 8. First spring; 9. Limiting plate; 10. Locking block; 11. Pull rod; 12. Mounting box; 13. Second spring; 14. Support plate; 15. Connecting rod; 16. Impact frame; 17. Air hole. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0027] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0028] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0029] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0030] In the description of this utility model, it should be noted that the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. These terms 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 on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0031] Example 1:

[0032] like Figure 1-5 As shown, this embodiment proposes a boiler inner wall temperature measuring resistance thermometer, including a junction box 1, a wire conduit 2 fixedly connected to the junction box 1, a connecting plate 3 fixedly connected to the junction box 1, a protective tube 4 provided on the connecting plate 3, a connecting wire 5 provided inside the protective tube 4, a resistance thermometer 6 installed on the connecting wire 5, a positioning plate 7 fixedly connected to the protective tube 4, a first spring 8 fixedly connected inside the connecting plate 3, a limit plate 9 fixedly connected to the other end of the first spring 8, a locking block 10 fixedly connected to the limit plate 9, a pull rod 11 fixedly connected to the limit plate 9, an installation box 12 fixedly connected to the protective tube 4, an air hole 17 opened on the installation box 12, a second spring 13 fixedly connected inside the installation box 12, and a support plate 14 fixedly connected to one end of the second spring 13.

[0033] Example 2:

[0034] The solution in Example 1 will be further described below with reference to its specific working method.

[0035] like Figure 3 As shown, in a preferred embodiment, based on the above method, the top surface of the positioning plate 7 is inclined, and the side surface of the limiting plate 9 is in contact with the inner surface of the connecting plate 3, which can ensure that the inclined surface of the positioning plate 7 can push the locking block 10 to move.

[0036] like Figure 3 As shown, in a preferred embodiment, based on the above method, the first spring 8 is symmetrically distributed on the left and right sides of the connecting plate 3. The first spring 8 corresponds one-to-one with the locking block 10 through the limiting plate 9, which can ensure that the locking blocks 10 on both sides can be locked in the positioning plate 7 for locking and limiting installation of the protective tube 4.

[0037] like Figure 3As shown, in a preferred embodiment, based on the above method, the cross-section of the locking block 10 is an isosceles triangle, and the length of the locking block 10 is less than the length of the pull rod 11. This ensures that the inclined surface of the isosceles triangle locking block 10 can be pushed and moved, and the plane can be engaged in the positioning plate 7 for fixed positioning.

[0038] like Figure 2 As shown, in a preferred embodiment, based on the above method, a connecting rod 15 is fixedly connected to the support plate 14, and an impact frame 16 is fixedly connected to the connecting rod 15. The impact frame 16 has a "C" shaped cross section, which can ensure that the "C" shaped impact frame 16 can fit against the mounting box 12 and move.

[0039] like Figure 5 As shown, in a preferred embodiment, based on the above method, the second springs 13 are further distributed at equal angles in the mounting box 12. The second springs 13 correspond one-to-one with the connecting rods 15 through the support plate 14, which can ensure that the impact frames 16 connected to the multiple connecting rods 15 can buffer the impact force.

[0040] Specifically, when using the internal wall temperature measuring resistance of this boiler: (in conjunction with...) Figure 1-5 When disassembling the protective tube 4, the pull rods 11 on both sides of the connecting plate 3 can be pulled to move the limiting plate 9. The limiting plate 9 can squeeze the first spring 8. At the same time, the limiting plate 9 drives the locking block 10 to disengage from the positioning plate 7 and retract into the connecting plate 3. After being unobstructed, the protective tube 4 and the positioning plate 7 can be disassembled and removed for replacement, improving the disassembly and installation effect. When reinstalling, the positioning plate 7 on the protective tube 4 is inserted into the connecting plate 3. The inclined surface of the positioning plate 7 can also push and squeeze the locking block 10. Alternatively, the pull rod 11 can be pulled loose. Under the push of the first spring 8, the limiting plate 9 and the locking block 10 are reset, and the locking block 10 can be locked in the positioning plate 7.

[0041] When the protective pipe 4 of the equipment collides with the inner wall of the boiler, the impact frame 16 can be pushed by the connecting rod 15 to move the support plate 14 into the mounting box 12. At the same time, the support plate 14 can be squeezed by the second spring 13. Under the push of the second spring 13, the impact frame 16 can be buffered and reset, which can play a protective role and avoid damage caused by shaking. When the support plate 14 moves, it can compress the gas in the mounting box 12, thereby realizing the buffering effect of impact force. The compressed gas will be slowly released through the air hole 17 on the mounting box 12, returning to the original state, which plays a role in gas damping buffering. The junction box 1 on the connecting plate 3 can be used with the wire conduit 2 to connect the connecting wire 5. The thermal resistor 6 on the connecting wire 5 can accurately measure the temperature by using the characteristic that the resistance value of the conductor or semiconductor material changes with temperature.

[0042] The above embodiments are only used to illustrate the present utility model and are not intended to limit the technical solutions described in the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, the present utility model is not limited to the specific embodiments described above. Therefore, any modifications or equivalent substitutions to the present utility model, as well as all technical solutions and improvements that do not depart from the spirit and scope of practicality, are covered within the scope of the claims of the present utility model.

Claims

1. A boiler inner wall temperature measuring resistance thermometer, comprising a junction box (1), characterized in that, A conduit (2) is fixedly connected to the junction box (1). A connecting plate (3) is fixedly connected to the junction box (1). A protective tube (4) is provided on the connecting plate (3). A connecting wire (5) is provided inside the protective tube (4). A thermal resistor (6) is installed on the connecting wire (5). A positioning plate (7) is fixedly connected to the protective tube (4). A first spring (8) is fixedly connected inside the connecting plate (3). A limit plate (9) is fixedly connected to the other end of the first spring (8). A locking block (10) is fixedly connected to the limit plate (9). A pull rod (11) is fixedly connected to the limit plate (9). A mounting box (12) is fixedly connected to the protective tube (4). An air hole (17) is opened on the mounting box (12). A second spring (13) is fixedly connected inside the mounting box (12). A support plate (14) is fixedly connected to one end of the second spring (13).

2. The boiler inner wall temperature measuring resistance thermometer according to claim 1, characterized in that, The top surface of the positioning plate (7) is inclined, and the side surface of the limiting plate (9) is in contact with the inner surface of the connecting plate (3).

3. A boiler inner wall temperature measuring resistance thermometer according to claim 1, characterized in that, The first spring (8) is symmetrically distributed on the left and right sides of the connecting plate (3), and the first spring (8) corresponds to the card block (10) one by one through the limiting plate (9).

4. A boiler inner wall temperature measuring resistance thermometer according to claim 1, characterized in that, The cross-section of the card block (10) is an isosceles triangle, and the length of the card block (10) is less than the length of the pull rod (11).

5. A boiler inner wall temperature measuring resistance thermometer according to claim 1, characterized in that, A connecting rod (15) is fixedly connected to the support plate (14), and an impact frame (16) is fixedly connected to the connecting rod (15). The impact frame (16) has a "C" shaped cross section.

6. A boiler inner wall temperature measuring resistance thermometer according to claim 1, characterized in that, The second spring (13) is distributed at equal angles in the mounting box (12), and the second spring (13) corresponds one-to-one with the connecting rod (15) through the support plate (14).

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