Preservative treatment device for measuring element in flue in desulfurization area

Abstract

The utility model provides an anti-corrosion treatment device for a measuring element in a flue in a desulfurization area, which belongs to the technical field of anti-corrosion treatment and comprises two groups of supporting components, a spraying component, a driver and a control panel, the two groups of supporting components are respectively used for supporting the measuring element to be subjected to anti-corrosion treatment; the measuring element has a degree of freedom of rotation around the axial circumferential direction of the two groups of supporting assemblies on the two groups of supporting assemblies; the spraying assembly is arranged on the side of the supporting assembly and used for spraying anti-corrosion paint towards the measuring element. The driver is used for driving the measuring element to rotate circumferentially; the control panel is electrically connected with the two sets of supporting assemblies, the spraying assembly and the driver and controls operation of the two sets of supporting assemblies, the spraying assembly and the driver. The anti-corrosion treatment device for the measuring element in the flue in the desulfurization area has the technical effects that anti-corrosion paint can be automatically sprayed on the measuring element, the labor intensity of workers is reduced, the harm to human bodies is reduced, and the coating operation efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the anticorrosive treatment technical field, more specifically, relate to a kind of desulfurization area flue inside measuring element anticorrosive treatment device. BACKGROUND

[0002] The measuring element in the flue of desulfurization absorption tower is mainly used for measuring the temperature, flow rate and other parameters of medium in the flue, and the measuring element includes a probe rod, a protective sleeve and a flange plate, the protective sleeve is sleeved outside the probe rod, the flange plate is installed in the middle of the protective sleeve, and the flange plate is used for connecting the flue, the head of the probe rod extends out of the protective sleeve and is placed inside the flue for measuring the temperature, flow rate and the like. Since the material of the measuring element is stainless steel, the measuring element is used in the environment with high content of sulfur dioxide in the flue, and the following problems may occur:

[0003] 1) sulfur dioxide seriously corrodes the probe rod and the protective sleeve, and the protective sleeve is damaged after being corroded and leaked;

[0004] 2) since the inner surface of the flange plate also contacts the flue gas in the flue, the inner surface of the flange plate is directly corroded by sulfur dioxide in the flue gas;

[0005] 3) after the protective sleeve is damaged, the flue gas containing sulfur dioxide will overflow along the inside of the protective sleeve to the terminal, causing the corrosion of the connecting wire of the measuring element and the breakage thereof.

[0006] Therefore, the measuring element needs to be subjected to anticorrosive treatment, that is, an anticorrosive material is coated on the protective sleeve, the probe rod and the flange plate to prevent the corrosion of the measuring element caused by sulfur dioxide. Since the structure of the measuring element is special, in order to ensure uniform coating and meet the anticorrosive requirements, manual coating operation is needed when the anticorrosive treatment is performed. Since the protective sleeve is relatively long, it is inconvenient to operate, the labor intensity is high, the coating operation may cause harm to the human body, and the coating operation efficiency is low. UTILITY MODEL CONTENTS

[0007] The utility model aims at providing a kind of desulfurization area flue inside measuring element anticorrosive treatment device, to solve the technical problem that the measuring element connected to the flue is inconvenient to manually coat when subjected to anticorrosive treatment, the labor intensity is high, the coating operation can cause harm to the human body, and the operation efficiency is low.

[0008] To achieve the above-mentioned purpose, the utility model adopts the technical scheme of providing a kind of desulfurization area flue inside measuring element anticorrosive treatment device, comprising:

[0009] Two groups of support assemblies are respectively used for supporting the measuring element to be subjected to anticorrosive treatment, and the measuring element has a rotational freedom around the circumferential direction of its axial direction on the two groups of support assemblies;

[0010] A spraying assembly is arranged at the side of the supporting assembly and used for spraying anticorrosive paint towards the measuring element;

[0011] A driver is arranged at one end of the measuring element to be treated, and a power output end of the driver is used for power connection with one end of the measuring element, so that the driver is used for driving the circumferential rotation of the measuring element;

[0012] A control panel is electrically connected with the two groups of supporting assemblies, the spraying assembly and the driver respectively, and is used for controlling the operation of the two groups of supporting assemblies, the spraying assembly and the driver respectively.

[0013] As another embodiment of the present application, the supporting assembly comprises:

[0014] Two groups of lifting columns, each having a vertical telescopic freedom degree;

[0015] Two groups of supporting portions are respectively connected to the upper ends of the two groups of lifting columns, each is arranged in a semicircular arc shape, and the two groups of supporting portions can be combined to form a circular ring shape, the measuring element is arranged between the two groups of supporting portions and is surrounded by the two groups of supporting portions, and the measuring element has a circumferential rotation freedom degree between the two groups of supporting portions.

[0016] As another embodiment of the present application, the lifting column is an electric telescopic rod, which is electrically connected with the control panel and is controlled by the control panel.

[0017] As another embodiment of the present application, one group of the supporting portions is connected with a locking device, the locking device is used for locking and fixing with the other group of the supporting portions, so that the two groups of the supporting portions are fixedly connected.

[0018] As another embodiment of the present application, the bottom end of the lifting column is connected with a moving disc, the moving disc is arranged on the ground and has a moving freedom degree in any direction, and the moving disc can be braked.

[0019] As another embodiment of the present application, the inner wall of the supporting portion is uniformly distributed with a plurality of rolling balls along the arc direction thereof, and the plurality of rolling balls are used for rolling supporting the measuring element, and the outer wall of the measuring element is in rolling abutment with the plurality of rolling balls.

[0020] As another embodiment of the present application, the spraying assembly comprises:

[0021] A supporting frame is arranged at the side of the supporting assembly;

[0022] A moving sleeve is connected to the supporting frame and has a moving freedom degree along the axial direction parallel to the measuring element on the supporting frame;

[0023] A rotating cylinder is hingedly connected to one end of the moving sleeve, the rotating cylinder has a rotating freedom degree around the hinged connection with the moving sleeve, and the angle or position of the rotating cylinder after rotation can be limited;

[0024] a plurality of nozzles, each of which is connected to the moving sleeve and the rotating cylinder, and each of which is used for spraying anticorrosive paint towards the measuring element, and each of which can be opened and closed;

[0025] a spray pipe, one end of which is sequentially arranged in the moving sleeve and the rotating cylinder, and which is in communication with the plurality of nozzles, and which is used for conveying anticorrosive paint to the plurality of nozzles, and which can be bent and deformed;

[0026] a paint pumping assembly, a paint output end of which is in communication with the other end of the spray pipe, and which is used for pumping paint into the spray pipe, and which is electrically connected to the control panel and runs under the control of the control panel.

[0027] As another embodiment of the present application, the support frame is connected with a pusher, the pusher has a push end which is used for pushing and stretching along the axial direction parallel to the measuring element, the push end is connected with the moving sleeve and is used for driving the moving sleeve to move, and the pusher is electrically connected with the control panel and runs under the control of the control panel.

[0028] As another embodiment of the present application, the moving sleeve is connected with a slide rail, and the plurality of nozzles are slidably connected with the slide rail, and the plurality of nozzles have sliding freedom along the length direction of the slide rail and the positions after sliding can be limited, the length direction of the slide rail is parallel to the axial direction of the measuring element, and the distance between the adjacent two nozzles can be adjusted by sliding on the slide rail.

[0029] As another embodiment of the present application, the plurality of nozzles arranged on the moving sleeve are used for spraying anticorrosive paint towards the protective sleeve and the circumferential wall of the flange plate of the measuring element, and the plurality of nozzles arranged on the rotating cylinder are used for spraying anticorrosive paint towards the inner surface of the flange plate of the measuring element.

[0030] The beneficial effect of the desulfurization area flue internal measuring element corrosion prevention treatment device is that, compared with the prior art, the desulfurization area flue internal measuring element corrosion prevention treatment device comprises two groups of supporting assemblies, a spraying assembly, a driver and a control panel, the two groups of supporting assemblies are respectively used for supporting the measuring element to be subjected to corrosion prevention treatment, the measuring element has a circumferential rotation degree on the two groups of supporting assemblies; the spraying assembly is arranged at the side of the supporting assembly and is used for spraying corrosion prevention paint towards the measuring element; the driver is arranged at one end of the measuring element to be subjected to corrosion prevention treatment, a power output end of the driver is used for power connection with one end of the measuring element, and the driver is used for driving the circumferential rotation of the measuring element; the control panel is electrically connected with the two groups of supporting assemblies, the spraying assembly and the driver respectively and controls operation respectively, and the technical problems of inconvenient manual coating, high operation labor intensity, harm to human body caused by the paint and low operation efficiency of the measuring element connected with the flue during corrosion prevention treatment are solved, the measuring element can be automatically sprayed with corrosion prevention paint, the labor intensity is reduced, harm to human body is reduced, and the coating operation efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creating labor.

[0032] Figure 1 The structure schematic diagram of the desulfurization area flue internal measuring element corrosion prevention treatment device provided by the embodiment of the utility model is shown in the figure.

[0033] Figure 2 The structure schematic diagram of the desulfurization area flue internal measuring element corrosion prevention treatment device provided by the embodiment of the utility model is shown in the figure.

[0034] Figure 3 The structure schematic diagram of the supporting assembly of the desulfurization area flue internal measuring element corrosion prevention treatment device provided by the embodiment of the utility model is shown in the figure.

[0035] Figure 4 The upper structure schematic diagram of the spraying assembly of the desulfurization area flue internal measuring element corrosion prevention treatment device provided by the embodiment of the utility model is shown in the figure.

[0036] In the figure: 1, support assembly; 11, lifting column; 12, supporting part; 13, lock; 14, moving disc; 15, ball; 2, spraying assembly; 21, support frame; 211, vertical frame; 212, horizontal frame; 22, moving sleeve; 23, rotating cylinder; 24, nozzle; 25, spray pipe; 26, pusher; 27, slide rail; 3, driver; 4, control panel; 5, measuring element. DETAILED DESCRIPTION

[0037] In order to make the technical problems, technical solutions and beneficial effects of the utility model clearer and more apparent, the utility model will be further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model and do not limit the utility model.

[0038] Please refer to Figures 1 to 4 , now a kind of desulfurization area flue in measuring element anticorrosion treatment device provided by the utility model is described. The kind of desulfurization area flue in measuring element anticorrosion treatment device, including two groups of support assembly 1, spraying assembly 2, driver 3 and control panel 4, two groups of support assembly 1 are used to support the measuring element 5 to be carried out anticorrosion treatment, and the measuring element 5 has the rotation freedom around its axial circumferential on two groups of support assembly 1;Spraying assembly 2 is located at the side of support assembly 1, for spraying anticorrosion paint towards measuring element 5;Driver 3 is located at one end of the measuring element 5 to be carried out anticorrosion treatment, and the power output end is used for power connection one end of measuring element 5, and driver 3 is used to drive the circumferential rotation of measuring element 5;Control panel 4 is electrically connected with two groups of support assembly 1, spraying assembly 2 and driver 3 respectively, and is controlled to operate respectively.

[0039] The kind of desulfurization area flue in measuring element anticorrosion treatment device provided by the utility model, compared with prior art, can automatically spray the measuring element 5 by setting spraying assembly 2, can automatically drive the rotation of measuring element 5 by driver 3, and spraying operation is carried out using spraying assembly 2 at the same time, the technical problems that the measuring element 5 connected to the flue is not convenient for manual coating when anticorrosion treatment, the operation labor intensity is large, the coating can cause harm to the body, and the operation efficiency is low are solved, the technical effects that the measuring element 5 can be automatically sprayed with anticorrosion paint, the artificial labor intensity is reduced, the harm to the body is reduced, and the coating operation efficiency is improved are achieved.

[0040] The driver 3 in the embodiment is a motor, which can clamp and fix the measuring element 5, drive the measuring element 5 to rotate circumferentially, further cooperate with the operation of the spraying assembly 2, and realize automatic spraying of the anticorrosive paint on the measuring element 5. The control panel 4 in the embodiment is a device capable of setting parameters, which plays a role in operation control of the supporting assembly 1, the spraying assembly 2 and the driver 3, thereby realizing the technical effect that the device can operate automatically. One or more parameters can be preset on the control panel 4, and a PLC controller is built-in. For example, the rotating direction and rotating speed of the driver 3, the spraying operation of the spraying assembly 2 and the supporting height of the supporting assembly 1 to the measuring element 5 are set, so as to facilitate the spraying operation of the spraying assembly 2. The supporting position of the supporting assembly 1 to the measuring element 5 can be adjusted, and the part of the supporting assembly 1 in contact with the measuring element 5 is the part without anticorrosion treatment.

[0041] As a specific embodiment of the device for anticorrosion treatment of a measuring element in a desulfurization zone flue provided by the device, please refer to Figures 1 to 4 The supporting assembly 1 comprises two groups of lifting columns 11 and two groups of supporting parts 12. The two groups of lifting columns 11 each have a vertical telescopic degree of freedom. The two groups of supporting parts 12 are respectively connected to the upper ends of the two groups of lifting columns 11, and are each arranged in a semicircular arc shape. The two groups of supporting parts 12 can be mutually butted and combined to form a circular ring. The measuring element 5 is arranged between the two groups of supporting parts 12 and surrounded by the two groups of supporting parts 12, and has a circumferential rotating degree of freedom between the two groups of supporting parts 12. The two groups of lifting columns 11 are structurally identical, and the supporting parts 12 are also structurally identical. The lifting column 11 can support the supporting part 12, and can adjust the height of the supporting part 12 by telescoping itself, thereby adapting the measuring element 5 to be arranged at a certain height. The supporting part 12 is symmetrically arranged about the axis of the measuring element 5 as the symmetry axis, so that the two groups of supporting parts 12 can surround the measuring element 5 circumferentially and provide the measuring element 5 with smooth circumferential rotation, which is beneficial to the circumferential spraying of the spraying assembly 2 on the measuring element 5. In the embodiment, the two groups of supporting assemblies 1 are arranged at intervals and are each used for rotatingly supporting the measuring element 5. The inner diameter of the circular ring formed by the combination of the two groups of supporting parts 12 is greater than the outer diameter of the measuring element 5.

[0042] In order to realize automatic control of the telescopic lifting of the lifting column 11, as a specific embodiment of the device for anticorrosion treatment of a measuring element in a desulfurization zone flue provided by the device, please refer to Figures 1 to 4 The lifting column 11 is an electric telescopic rod, which is electrically connected with the control panel 4 and controlled by the control panel 4. The electric telescopic rod is a product of the prior art, which is arranged in a vertical manner and can telescope vertically, thereby adjusting the height of the supporting part 12 and the supporting height of the measuring element 5. The control panel 4 is provided with a control button capable of controlling the telescopic operation of the electric telescopic rod.

[0043] To fix two groups of supporting parts 12, prevent the measuring element 5 from falling out of the two groups of supporting parts 12 during rotation, as a kind of concrete embodiment of the utility model provides a kind of measuring element corrosion protection device in desulfurization area flue, please refer to Figures 1 to 4 One group of supporting parts 12 is connected with lock 13, and lock 13 is used to be locked with the other group of supporting parts 12, so that the two groups of supporting parts 12 are fixedly connected.The lock 13 in the embodiment is a kind of structure such as binding rope, fastener and the like in prior art, can realize the mutual locking of the two groups of supporting parts 12, so that the two groups of supporting parts 12 can be combined to form a whole, so that the measuring element 5 can be smoothly rotated in the circumferential direction, to facilitate uniform spraying of the measuring element 5 and improve the efficiency of spraying operation.

[0044] To facilitate the movement of lifting column 11, or adjust the use position of lifting column 11, as a kind of concrete embodiment of the utility model provides a kind of measuring element corrosion protection device in desulfurization area flue, please refer to Figures 1 to 4 Lifting column 11 bottom end is connected with moving disc 14, moving disc 14 is placed on the ground and has the freedom of moving towards any direction, and moving disc 14 can be braked.A plurality of rollers are arranged at the bottom of moving disc 14, the rollers can support the movement of moving disc 14, of course, the rollers can also be locked or braked, that is, the position of moving disc 14 after moving can be locked.Through the setting of moving disc 14, the movement of lifting column 11 can be facilitated, and the position of lifting column 11 can be adjusted. Figure 1 And Figure 2 The point filling area on the measuring element 5 in the drawings indicates the sprayed material area.

[0045] To reduce the friction between the measuring element 5 and the supporting part 12, as a kind of concrete embodiment of the utility model provides a kind of measuring element corrosion protection device in desulfurization area flue, please refer to Figures 1 to 4 The inner wall of supporting part 12 is uniformly distributed with a plurality of balls 15 along the arc direction, and the plurality of balls 15 are used to roll and support the measuring element 5, and the outer wall of the measuring element 5 is in rolling abutment with the plurality of balls 15.Along the arc direction of supporting part 12, the plurality of balls 15 are arranged at equal intervals, and the balls 15 are in rolling contact with the measuring element 5, so that the measuring element 5 can be smoothly rotated between the two groups of supporting parts 12, and the spraying operation can be carried out at the same time, so that the thickness of the sprayed coating is uniform, and the corrosion protection effect and the spraying quality are guaranteed.

[0046] As a kind of concrete embodiment of the utility model provides a kind of measuring element corrosion protection device in desulfurization area flue, please refer to Figures 1 to 4The spraying assembly 2 comprises a support frame 21, a moving sleeve 22, a rotating cylinder 23, a plurality of nozzles 24, a spray pipe 25 and a paint pumping assembly (a prior art, not shown in the figure), the support frame 21 is arranged at the side of the support assembly 1; the moving sleeve 22 is connected to the support frame 21 and has an axial movement freedom degree parallel to the measuring element 5 on the support frame 21; one end of the rotating cylinder 23 is hinged to one end of the moving sleeve 22, the rotating cylinder 23 has a rotating freedom degree around the hinged place of the moving sleeve 22, and the angle or position of the rotating cylinder 23 after rotation can be limited; the plurality of nozzles 24 are respectively connected to the moving sleeve 22 and the rotating cylinder 23, and the plurality of nozzles 24 are all used for spraying anticorrosive paint towards the measuring element 5, and each nozzle 24 can be opened and closed; one end of the spray pipe 25 is sequentially arranged in the moving sleeve 22 and the rotating cylinder 23, the spray pipe 25 is communicated with the plurality of nozzles 24 respectively, the spray pipe 25 is used for conveying anticorrosive paint to the plurality of nozzles 24, and the spray pipe 25 can be bent and deformed; the other end of the spray pipe 25 is communicated with the paint output end of the paint pumping assembly, the paint pumping assembly is used for pumping paint into the spray pipe 25, the paint pumping assembly is electrically connected with the control panel 4 and runs under the control of the control panel 4. The support frame 21 comprises a vertical frame 211 arranged vertically on the ground and a horizontal frame 212 connected to the upper end of the vertical frame 211, the moving sleeve 22 is slidingly connected to the bottom end of the horizontal frame 212, the moving sleeve 22 can slide reciprocally on the horizontal frame 212, and the length direction of the horizontal frame 212 is parallel to the axial direction of the measuring element 5, so that the spraying operation along the axial direction of the measuring element 5 can be realized through the sliding of the moving sleeve 22. With the rotation of the measuring element 5, the spraying operation can be realized along the circumferential direction of the measuring element 5. The rotating cylinder 23 can be rotated and adjusted, and when the position after rotation is adjusted, the position can be locked. That is, a jackscrew is arranged on the moving sleeve 22, and the inner end of the jackscrew can abut against or be connected to the rotating cylinder 23, so that the position of the rotating cylinder 23 after rotation can be locked. Of course, the rotating cylinder 23 can also be coaxially arranged with the moving sleeve 22 after rotation, that is, the axial directions of the two are on a straight line. The paint pumping assembly is a prior art, which comprises a paint container and a pump body communicated with the paint container, the pump body is electrically connected with the control panel 4 and runs under the control of the control panel 4, the pump body is communicated with one end of the spray pipe 25 and is used for pumping paint into the spray pipe 25. The paint is then conveyed to each nozzle 24 and then sprayed to the outer wall of the measuring element 5. It should be noted that the bending of the spray pipe 25 will not affect the normal conveying of the paint in the spray pipe 25. The plurality of nozzles 24 can be opened and closed, and by opening or closing one or more nozzles 24, the uniformity and thickness of the spraying can be reasonably controlled.

[0047] To realize the automatic control of the movement of the moving sleeve 22, as a specific embodiment of the desulfurization zone flue measuring element anticorrosion treatment device provided by the utility model, please refer to Figures 1 to 4The supporting frame 21 is connected with a pusher 26, the pusher 26 has a push end which is pushed along the axial direction of the measuring element 5, the push end is connected with the moving sleeve 22 and is used to drive the moving sleeve 22 to move, the pusher 26 is connected with the control panel 4 and is controlled by the control panel 4. The pusher 26 is an electric push rod in the prior art, which can push the moving sleeve 22 to move, so that the spraying assembly 2 can be sprayed along the axial direction of the measuring element 5.

[0048] In order to adjust the distance between the nozzles 24, as a specific embodiment of the desulfurization zone flue measuring element corrosion protection treatment device provided by the utility model, please refer to Figures 1 to 4 The moving sleeve 22 is connected with a sliding rail, and the plurality of nozzles 24 are slidably connected with the sliding rail 27; the plurality of nozzles 24 have a sliding degree along the length direction of the sliding rail 27 and the position after sliding can be limited; the length direction of the sliding rail 27 is parallel to the axial direction of the measuring element 5, and the distance between the adjacent two nozzles 24 can be adjusted by sliding on the sliding rail 27. The sliding rail 27 is arranged on the outer wall of the moving sleeve 22, the plurality of nozzles 24 are slidably connected with the sliding rail 27, and the position after sliding can be locked on the sliding rail 27, so that the spraying position of the nozzles 24, the interval of the nozzles 24 and the like are adjusted, which is beneficial to better spraying paint on the measuring element 5. Figure 4 The dashed line in the figure indicates the spraying direction of the nozzles 24.

[0049] As a specific embodiment of the desulfurization zone flue measuring element corrosion protection treatment device provided by the utility model, please refer to Figures 1 to 4 The plurality of nozzles 24 on the moving sleeve 22 are used for spraying anticorrosive paint towards the protective sleeve and the flange disc circumferential wall of the measuring element 5, and the plurality of nozzles 24 on the rotating cylinder 23 are used for spraying anticorrosive paint towards the inner surface of the flange disc of the measuring element 5, so that high-efficiency spraying work is realized.

[0050] The above only describes the preferred embodiments of the utility model and is not used to limit the utility model, and any modification, equivalent replacement and improvement made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A corrosion protection device for measuring elements in a desulfurization zone flue, characterized in that, The utility model relates to a kind of anticorrosion device for measuring element, including: Two groups of support components are used to support the measuring element to be carried out anticorrosion treatment respectively, and the measuring element has the rotation freedom around its axial circumference on two groups of the support components; Spraying components are arranged on the side of the support components, for spraying anticorrosive paint towards the measuring element; Driver is arranged at one end of the measuring element to be carried out anticorrosion treatment, and the power output end is used to power connect one end of the measuring element, and the driver is used to drive the circumferential rotation of the measuring element; Control panel is electrically connected with two groups of the support components, the spraying components and the driver respectively, and controls operation respectively.

2. A device for preventing corrosion of a measuring element in a desulfurization zone of a flue according to claim 1, wherein The support component includes: Two groups of lifting columns have vertical telescopic freedom degree; Two groups of supporting parts are connected to the upper end of two groups of the lifting columns, and are arranged in semicircular arc shape, and two groups of the supporting parts can be mutually butted to form a circular ring, and the measuring element is arranged between two groups of the supporting parts and is surrounded by two groups of the supporting parts, and the measuring element has circumferential rotation freedom between two groups of the supporting parts.

3. A device for preventing corrosion of a measuring element in a desulfurization zone of a flue according to claim 2, wherein The lifting column is an electric telescopic rod, which is electrically connected with the control panel and controlled by the control panel.

4. A device for preventing corrosion of a measuring element in a desulfurization zone of a flue according to claim 2, wherein One of the supporting parts is connected with a lock, which is used to lock and fix with the other supporting part, so that the two supporting parts are fixedly connected.

5. A device for preventing corrosion of a measuring element in a desulfurization zone of a flue according to claim 2, wherein The bottom end of the lifting column is connected with a moving disc, which is placed on the ground and has the freedom to move in any direction, and the moving disc can be braked.

6. A device for preventing corrosion of a measuring element in a desulfurizing zone of a flue according to claim 2, wherein The inner wall of the supporting part is uniformly distributed with a plurality of balls along the arc direction, and the plurality of balls are used to roll and support the measuring element, and the outer wall of the measuring element is in rolling abutment with the plurality of balls.

7. A device for preventing corrosion of a measuring element in a desulfurization zone of a flue according to claim 1, wherein The spraying component includes: Support frame is arranged on the side of the support component; Moving sleeve is connected to the support frame, and has the freedom to move along the axial direction parallel to the measuring element on the support frame; Rotating cylinder is hinged to one end of the moving sleeve, and has the freedom to rotate around the hinge with the moving sleeve, and the angle or position of the rotating cylinder after rotation can be limited; A plurality of nozzles are connected to the moving sleeve and the rotating cylinder, and the plurality of nozzles are used to spray anticorrosive paint towards the measuring element, and each nozzle can be opened and closed; The spray pipe is sequentially arranged in the moving sleeve and the rotating cylinder, and the spray pipe is in communication with the plurality of nozzles, and the spray pipe is used to deliver anticorrosive paint to the plurality of nozzles, and the spray pipe can be bent and deformed; The paint pumping component is connected to the other end of the spray pipe, and is used to pump paint into the spray pipe, and the paint pumping component is electrically connected with the control panel and controlled by the control panel.

8. A device for preventing corrosion of a measuring element in a desulfurizing zone of a flue according to claim 7, wherein The support frame is connected with a pusher, which has a push end that can be extended and retracted along the axial direction parallel to the measuring element, and the push end is connected with the moving sleeve and used to drive the moving sleeve to move, and the pusher is electrically connected with the control panel and controlled by the control panel.

9. A device for preventing corrosion of a measuring element in a desulfurizing zone of a flue according to claim 7, wherein The moving sleeve is connected with a slide rail, and a plurality of the nozzles are slidably connected with the slide rail.

10. A device for preventing corrosion of a measuring element in a desulfurization zone of a flue according to claim 7, wherein The plurality of nozzles on the moving sleeve are used for spraying anticorrosive paint towards the circumference wall of the protection sleeve and the flange plate of the measuring element, and the plurality of nozzles on the rotating cylinder are used for spraying anticorrosive paint towards the inner surface of the flange plate on the measuring element.

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