Boiler expansion indicator

Abstract

The utility model discloses a boiler expansion indicator which comprises an indicating box, a first distance sensor is arranged at the bottom of the indicating box, a second distance sensor is arranged on one side of the indicating box, a control panel is further arranged on the outer side of the indicating box, a connecting mechanism is installed at the top end of the indicating box and comprises a connecting rod, and the connecting rod is welded to a boiler. An adjusting frame is arranged at one end of the connecting rod, a sliding groove is formed in one side of the adjusting frame, a sliding screw rod is sleeved with the sliding groove, a supporting rod is arranged on the outer side of the sliding groove, a telescopic rod is arranged at the bottom end of the supporting rod, a first positioning disc is arranged at the bottom end of the indication box, and second positioning discs are arranged on the two sides of the top of the first positioning disc. The height displacement condition during expansion is detected through the first distance sensor and the first positioning disc, the front-back and left-right displacement condition during expansion is detected through the second distance sensor and the second positioning disc, and therefore the expansion condition of the boiler is judged, and the intelligent induction type expansion indication effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of boiler expansion detection, in particular to a boiler expansion indicator. Background Art

[0002] The main body of the power station boiler is an all-metal structure. During the operation and shutdown of the boiler, the power station boiler will expand as a whole. The expansion amount should be within a certain range, otherwise there will be a major safety hazard. In order to detect the expansion amount, an expansion indicator is needed. The working principle of the expansion indicator is the principle of thermal expansion and contraction, and the separation of movement and static produces displacement. When the boiler is heated and pressurized, thermal expansion often occurs in the heat-sensitive components. In order to prevent the heated components from generating large thermal stress, their expansion process cannot be blocked, otherwise the heated components may be deformed or damaged; the expansion indicator records the current expansion size of the boiler to judge the current expansion of the boiler. When the expansion is abnormal, timely inspection and measures should be taken to avoid equipment damage.

[0003] At present, most expansion indicators are of contact type, which are mainly divided into two types: two-dimensional and three-dimensional. Generally, a pointer design is adopted, and a three-dimensional one is a component composed of a three-phase pointer and a corresponding direction dial. However, the actual expansion displacement often deviates from the designed amount, so repeated start-stop operation will cause dust or sediment accumulation, resulting in the pointer being stuck, punctured, and the dial panel being worn, thereby reducing the service life of the dial panel. At the same time, long-term wear also leads to errors in the expansion displacement of the actual measuring equipment. Moreover, the expansion indicators currently used mostly judge the expansion amount by manually reading the changes in the pointer on the dial. Because of the errors caused by the dial and the design, plus the errors caused by manual reading, there is a gap between the final judged expansion amount and the actual expansion amount. Moreover, the expansion of the boiler is subject to certain limitations. When the expansion is large, it is easy to cause harm. In the past, it was impossible to timely warn and remind the staff, and there were great safety hazards. For this reason, the present application proposes a boiler expansion indicator to solve this problem.

[0004] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0005] The purpose of the utility model is to provide a boiler expansion indicator to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides a boiler expansion indicator, including an indicator box, a first distance sensor is provided at the bottom of the indicator box, a second distance sensor is provided on one side of the indicator box, a control panel is also provided on the outside of the indicator box, a connecting mechanism is installed on the top of the indicator box, the connecting mechanism includes a connecting rod, the connecting rod is welded to the boiler, an adjusting frame is provided at one end of the connecting rod, a slide groove is provided on one side of the adjusting frame, a sliding rod is sleeved inside the slide groove, a sliding block is sleeved on one side of the sliding rod, a support rod is provided on the outside of the slide groove, a telescopic rod is provided at the bottom end of the support rod, the telescopic rod is fixedly connected with the indicator box bolts, a first positioning plate is provided at the bottom end of the indicator box, a first sensor is provided at the top edge of the first positioning plate, second positioning plates are provided on both sides of the top of the first positioning plate, and a second sensor is provided at the edge of one side of the second positioning plate.

[0007] Preferably, the adjusting frame is welded to the connecting rod, a knob is provided at one end of the adjusting frame, the knob is connected to the rotating shaft of the sliding screw, the sliding screw is connected to the bearing of the adjusting frame, the slider is movably connected to the sliding groove, the slider is fixedly connected to the support rod bolt, and the telescopic rod is fixedly connected to the support rod bolt.

[0008] Preferably, the first distance sensor is fixedly connected to the indicator box by bolts, the second distance sensor is fixedly connected to the indicator box by bolts, the first positioning plate is installed on the boiler frame, and the second positioning plate is fixedly connected to the first positioning plate by bolts.

[0009] Preferably, a processor is fixedly installed inside the indicator box, the control panel is fixedly connected to the indicator box by bolts, and the processor is respectively connected to the control panel, the first distance sensor, the second distance sensor, the control panel and the terminal device.

[0010] Preferably, the first sensor is fixedly connected to the first positioning plate by bolts, and the second sensor is fixedly connected to the second positioning plate by bolts.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. The utility model is a boiler expansion indicator, which is provided with an indicator box, a first distance sensor, a second distance sensor, a connecting mechanism, a first positioning plate and a second positioning plate. The position of the indicator box is adjusted by the connecting mechanism, the height displacement during expansion is detected by the first distance sensor and the first positioning plate, the front, back, left and right displacement during expansion is detected by the second distance sensor and the second positioning plate, and finally displayed by a display panel, so as to judge the expansion of the boiler and play the role of intelligent induction expansion indication.

[0013] 2. The utility model is a boiler expansion indicator, which is provided with a first sensor and a second sensor. When the boiler expands to a large extent, the first distance sensor or the second distance sensor will transmit to the first sensor or the second sensor. At this time, the first sensor or the second sensor feeds back information and sends out an alarm through the control panel, thereby achieving the effect of boiler expansion warning. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a structural schematic diagram of a boiler expansion indicator according to an embodiment of the utility model;

[0016] Figure 2 It is a schematic diagram of the internal structure of an indicator box in a boiler expansion indicator according to an embodiment of the utility model;

[0017] Figure 3 It is a schematic diagram of the internal structure of a connecting mechanism in a boiler expansion indicator according to an embodiment of the utility model;

[0018] Figure 4 It is a schematic diagram of the internal structure of a first positioning disk and a second positioning disk in a boiler expansion indicator according to an embodiment of the utility model.

[0019] Reference numerals:

[0020] 1. Indicator box; 101. First distance sensor; 102. Second distance sensor; 103. Processor; 104. Control panel; 2. Connecting mechanism; 201. Connecting rod; 202. Adjusting frame; 203. Slide groove; 204. Slide rod; 205. Slider; 206. Knob; 207. Support rod; 208. Telescopic rod; 3. First positioning plate; 301. First sensor; 302. Second positioning plate; 303. Second sensor. DETAILED DESCRIPTION

[0021] Below, in conjunction with the accompanying drawings and specific implementation methods, the utility model is further described:

[0022] See also Figure 1-4According to an embodiment of the utility model, a boiler expansion indicator comprises an indicator box 1, a first distance sensor 101 is arranged at the bottom of the indicator box 1, a second distance sensor 102 is arranged at one side of the indicator box 1, a control panel 104 is also arranged at the outer side of the indicator box 1, a connecting mechanism 2 is installed at the top of the indicator box 1, the connecting mechanism 2 comprises a connecting rod 201, the connecting rod 201 is welded to the boiler, an adjusting frame 202 is arranged at one end of the connecting rod 201, a slide groove 203 is arranged at one side of the adjusting frame 202, a sliding rod 204 is sleeved inside the slide groove 203, a slider 205 is sleeved at one side of the sliding rod 204, a support rod 207 is arranged at the outer side of the slide groove 203, and a support rod 207 is arranged at the outer side of the support rod 207. A telescopic rod 208 is provided at the bottom end of the support rod 207, and the telescopic rod 208 is fixedly connected to the indicator box 1 by bolts. A first positioning plate 3 is provided at the bottom end of the indicator box 1, and a first sensor 301 is provided at the top edge of the first positioning plate 3. Second positioning plates 302 are provided on both sides of the top of the first positioning plate 3, and a second sensor 303 is provided at the edge of one side of the second positioning plate 302. The utility model detects the height displacement during expansion through the first distance sensor 101 and the first positioning plate 3, and detects the front, back, left and right displacement during expansion through the second distance sensor 102 and the second positioning plate 302, thereby judging the expansion of the boiler, and has the effect of intelligent induction expansion indication.

[0023] According to the above scheme of the utility model, the adjusting frame 202 is welded to the connecting rod 201, a knob 206 is provided at one end of the adjusting frame 202, the knob 206 is connected to the rotating shaft of the sliding screw rod 204, the sliding screw rod 204 is connected to the bearing of the adjusting frame 202, the slider 205 is movably connected to the slide groove 203, the slider 205 is bolted and fixedly connected to the support rod 207, and the telescopic rod 208 is bolted and fixedly connected to the support rod 207, which is used to adjust the position of the indicator box 1.

[0024] According to the above scheme of the utility model, the first distance sensor 101 is fixedly connected to the indicator box 1 by bolts, the second distance sensor 102 is fixedly connected to the indicator box 1 by bolts, the first positioning plate 3 is installed on the boiler frame, the second positioning plate 302 is fixedly connected to the first positioning plate 3 by bolts, the processor 103 is fixedly installed inside the indicator box 1, the control panel 104 is fixedly connected to the indicator box 1 by bolts, and the processor 103 is respectively connected to the control panel 104, the first distance sensor 101, the second distance sensor 102, the control panel 104 and the terminal device data for expansion distance positioning indication.

[0025] According to the above solution of the utility model, the first sensor 301 is fixedly connected to the first positioning plate by bolts, and the second sensor 303 is fixedly connected to the second positioning plate 302 by bolts, for intelligent sensing early warning work.

[0026] When in use, the connecting rod 201 is welded to the boiler. After installation, the sliding rod 204 is driven to rotate by rotating the knob 206. The sliding rod 204 drives the slider 205 to move along the slide groove 203. The slider 205 drives the support rod 207, the telescopic rod 208 and the indicator box 1 to move left and right, and the position of the indicator box 1 is adjusted. Then, the installation position of the telescopic rod 208 and the support rod 207 is adjusted, and finally, the height of the indicator box 1 is adjusted by the telescopic rod 208. At this time, the first distance sensor and the second distance sensor detect that the value of the distance between the first positioning plate 3 and the second positioning plate 302 is defined as 0. When the boiler expands, it will drive the indicator box 1 to deviate. At this time, the two second distance sensors detect the second positioning plate 302. The first distance sensor detects the distance between the first positioning plate 3, and the detection result is processed by the processor 103 and displayed by the control panel 104. The two second distance sensors detect the plane movement distance, and the first distance sensor detects the height movement distance, so as to judge the expansion of the boiler and achieve the effect of intelligent inductive expansion indication; when the expansion of the boiler is large, the first distance sensor 101 or the second distance sensor 102 will transmit to the first sensor 301 or the second sensor 303. At this time, the first sensor 301 or the second sensor 303 feedbacks information and issues an alarm through the control panel 104 to achieve the effect of boiler expansion warning.

[0027] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "top", "bottom", "one side", "the other side", "front", "back", "middle part", "inside", "top end", "bottom end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention 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 of the present invention; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance; in addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a communication between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A boiler expansion indicator, characterized in that: The invention comprises an indicator box (1), wherein a first distance sensor (101) is provided at the bottom of the indicator box (1), a second distance sensor (102) is provided at one side of the indicator box (1), a control panel (104) is also provided at the outer side of the indicator box (1), a connecting mechanism (2) is installed at the top of the indicator box (1), the connecting mechanism (2) comprises a connecting rod (201), the connecting rod (201) is welded to the boiler, an adjusting frame (202) is provided at one end of the connecting rod (201), a sliding groove (203) is provided at one side of the adjusting frame (202), a sliding screw rod (203) is sleeved inside the sliding groove (203) 204), a sliding block (205) is sleeved on one side of the sliding rod (204), a supporting rod (207) is provided on the outer side of the sliding groove (203), a telescopic rod (208) is provided at the bottom end of the supporting rod (207), the telescopic rod (208) is bolted and fixedly connected to the indicator box (1), a first positioning plate (3) is provided at the bottom end of the indicator box (1), a first sensor (301) is provided at the top edge of the first positioning plate (3), second positioning plates (302) are provided on both sides of the top of the first positioning plate (3), and a second sensor (303) is provided at the edge of one side of the second positioning plate (302).

2. A boiler expansion indicator according to claim 1, characterized in that: The adjusting frame (202) is welded to the connecting rod (201); a knob (206) is provided at one end of the adjusting frame (202); the knob (206) is connected to the rotating shaft of the sliding rod (204); the sliding rod (204) is connected to the bearing of the adjusting frame (202); the sliding block (205) is movably connected to the sliding groove (203); the sliding block (205) is fixedly connected to the supporting rod (207) by bolts; and the telescopic rod (208) is fixedly connected to the supporting rod (207) by bolts.

3. A boiler expansion indicator according to claim 1, characterized in that: The first distance sensor (101) is fixedly connected to the indicator box (1) by bolts, the second distance sensor (102) is fixedly connected to the indicator box (1) by bolts, the first positioning plate (3) is installed on the boiler frame, and the second positioning plate (302) is fixedly connected to the first positioning plate (3) by bolts.

4. A boiler expansion indicator according to claim 3, characterized in that: A processor (103) is fixedly installed inside the indicator box (1), the control panel (104) is fixedly connected to the indicator box (1) by bolts, and the processor (103) is respectively connected to the control panel (104), the first distance sensor (101), the second distance sensor (102), the control panel (104) and the terminal device data.

5. A boiler expansion indicator according to claim 4, characterized in that: The first sensor (301) is fixedly connected to the first positioning plate by bolts, and the second sensor (303) is fixedly connected to the second positioning plate (302) by bolts.

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