Boiler steam soot blowing control device

Abstract

The utility model relates to the technical field of boiler soot blowing, and particularly discloses a boiler steam soot blowing control device which comprises a base. One end of the hydraulic rod is fixedly connected to the base; the pushing mechanism is fixedly connected to the other end of the hydraulic rod; and the soot blowing mechanism is fixedly connected to the pushing mechanism. The height of the soot blowing device is adjusted through the hydraulic rod, the soot blowing mechanism automatically extends into the boiler through the pushing mechanism, adjustment can be carried out according to the positions of different boilers, flexibility is high, soot blowing is carried out on the boiler through the soot blowing mechanism, a spray head in the soot blowing mechanism is automatically cleaned, and the working efficiency of soot blowing and cleaning of the boiler is greatly improved.

Description

Technical Field

[0001] The present application relates to the technical field of boiler sootblowing, and more specifically, to a boiler steam sootblowing control device. Background Art

[0002] During the operation of a thermal power plant, the long-term operation of the boiler will cause ash and coking on the heating surface, which will deteriorate the heat transfer. For the tail flue, due to the long-term accumulation of combustibles, serious accidents such as re-burning may occur. Therefore, after the boiler has been running for a period of time, it is necessary to blow off the ash on the heating surface to clean it.

[0003] Steam soot blowers mainly use the blowing effect of high-pressure steam to remove the accumulated ash and slag on the heating surface. The technology of steam soot blowing is relatively mature, the soot blowing time is short, and the effect is good. It has been widely used in thermal power plants. However, steam soot blowers also have many shortcomings and deficiencies. In addition, problems in production management and maintenance have also brought some adverse effects on the safe and economical operation of boilers. For example, due to the different locations of various boilers, it usually takes a lot of time to install the soot blowing device when steam soot blowing the boiler. During the use of the soot blowing device, due to the influence of temperature, it is easy to cause steam condensation and ash accumulation on the steam nozzle, causing nozzle blockage. Utility Model Content

[0004] In order to solve the above technical defects, the utility model provides a boiler steam soot blowing control device, which solves the technical problems of time-consuming installation and easy clogging of the nozzle in the existing soot blowing device.

[0005] In order to achieve the above object, the utility model provides a boiler steam soot blowing control device, comprising:

[0006] Base;

[0007] A hydraulic rod, one end of which is fixedly connected to the base;

[0008] A pushing mechanism, fixedly connected to the other end of the hydraulic rod;

[0009] The soot blowing mechanism is fixedly connected to the pushing mechanism.

[0010] Furthermore, a universal wheel is movably mounted on the bottom of the base.

[0011] Furthermore, the driving mechanism comprises:

[0012] A housing, fixedly connected to the hydraulic rod;

[0013] A first motor is arranged inside the housing and close to one end of the hydraulic rod;

[0014] A push rod assembly, one end of which is fixedly connected to the output end of the first motor;

[0015] The connecting plate is fixedly connected to the other end of the push rod assembly.

[0016] Furthermore, the push rod assembly comprises:

[0017] A rotating screw rod is fixedly connected to the output end of the first motor;

[0018] A sliding assembly, slidably connected to the rotating screw;

[0019] A first connecting rod has one end fixedly connected to the sliding assembly and the other end fixedly connected to the connecting plate.

[0020] Furthermore, the sliding assembly comprises:

[0021] Slide grooves are provided on both sides of the shell;

[0022] A first sliding block, slidably disposed in the sliding groove;

[0023] A second connecting rod, one end of which is fixedly connected to the first sliding block;

[0024] The second slider has an inner side wall threadedly connected to the rotating screw rod, and an outer side wall of the second slider is fixedly connected to the other end of the second connecting rod.

[0025] Furthermore, the soot blowing mechanism comprises:

[0026] A steam inlet box, fixedly connected to the pushing mechanism;

[0027] A steam nozzle is rotatably arranged at the steam outlet of the steam inlet box, and the steam nozzle is communicated with the steam inlet box.

[0028] Furthermore, the soot blowing mechanism also includes:

[0029] A steam inlet pipe is provided on the outer wall of the steam inlet box;

[0030] The heating pipe is fixedly connected to the interior of the steam inlet box.

[0031] Furthermore, the steam spray head comprises:

[0032] A nozzle body is rotatably disposed at the steam outlet of the steam inlet box;

[0033] There are several injection pipes, which are evenly arranged on the side wall of the nozzle body along the circumferential direction, and the injection pipes are connected to the nozzle body.

[0034] Furthermore, the steam spray head further comprises:

[0035] A second motor is fixedly connected to the outer wall of the steam inlet box;

[0036] A driving gear, which is arranged at the output end of the second motor;

[0037] The rotating teeth are fixedly connected to the outer wall of the nozzle body, and the rotating teeth are meshed with the driving gear.

[0038] Furthermore, the steam spray head further comprises:

[0039] A cleaning sleeve, fixedly connected to the outer wall of the steam inlet box;

[0040] A cleaning brush is fixedly connected to the cleaning sleeve.

[0041] Compared with the prior art, the beneficial effects of the utility model are:

[0042] The utility model discloses the sootblower of the utility model can flexibly adjust the position of the sootblower according to the different positions of the boiler through the arrangement of the hydraulic rod and the pushing mechanism, and automatically extend the sootblower mechanism into the boiler, thereby reducing the labor intensity of the staff; and by arranging a heating pipe and a cleaning brush inside the steam nozzle, it is difficult for condensation to form inside the nozzle, thereby realizing automatic cleaning of the steam nozzle, effectively preventing the nozzle from being blocked, and greatly improving the working efficiency of boiler sootblowing and cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0044] Figure 1 A schematic structural diagram of a boiler steam soot blowing control device proposed in an embodiment of the utility model is shown;

[0045] Figure 2 A side view of a sootblowing mechanism proposed in an embodiment of the utility model is shown.

[0046] In the figure: 1. base; 11. universal wheel; 2. hydraulic rod; 31. shell; 32. first motor; 33. rotating screw; 34. slide groove; 35. first slider; 36. second connecting rod; 37. second slider; 38. first connecting rod; 39. connecting plate; 41. steam inlet box; 42. steam inlet pipe; 43. heating pipe; 44. steam nozzle; 441. nozzle body; 442. injection pipe; 443. second motor; 444. driving gear; 445. rotating gear; 446. cleaning sleeve; 447. cleaning brush. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0048] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0049] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0050] In the description of this application, it should be noted that, 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 indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0051] The present application embodiment provides a boiler steam soot blowing control device, such as Figure 1 As shown, it includes a base 1; a hydraulic rod 2, one end of which is fixedly connected to the base 1; a pushing mechanism, which is fixedly connected to the other end of the hydraulic rod 2; and a soot blowing mechanism, which is fixedly connected to the pushing mechanism.

[0052] In this embodiment, the lifting and lowering of the sootblowing device is controlled by the hydraulic rod 2, and the sootblowing device is extended into the boiler by the pushing mechanism to perform steam sootblowing on the boiler.

[0053] In some embodiments of the present application, a universal wheel 11 is movably mounted on the bottom of the base 1 .

[0054] In this embodiment, the sootblowing device is allowed to move freely by providing the universal wheels 11, so that the transportation of the sootblowing device is convenient and the position adjustment is more flexible.

[0055] In some embodiments of the present application, the pushing mechanism includes: a shell 31, fixedly connected to the hydraulic rod 2; a first motor 32, arranged inside the shell 31 close to one end of the hydraulic rod 2; a push rod assembly, one end of which is fixedly connected to the output end of the first motor 32; and a connecting plate 39, fixedly connected to the other end of the push rod assembly.

[0056] In this embodiment, starting the first motor 32 can drive the push rod assembly to extend forward, thereby pushing the connecting plate 39 and driving the soot blowing mechanism to extend into the boiler.

[0057] In some embodiments of the present application, the push rod assembly includes: a rotating screw rod 33, fixedly connected to the output end of the first motor 32; a sliding assembly, slidably connected to the rotating screw rod 33; a first connecting rod 38, one end of which is fixedly connected to the sliding assembly and the other end is fixedly connected to the connecting plate 39.

[0058] In this embodiment, after starting the first motor 32, the first motor 32 rotates to drive the rotating screw 33 to rotate, and the rotating screw 33 causes the sliding assembly to move forward, and the sliding assembly pushes the first connecting rod 38, thereby driving the connecting plate 39 fixedly connected to the first connecting rod 38 to move forward.

[0059] In some embodiments of the present application, the sliding assembly includes: a slide groove 34, which is opened on both sides of the shell 31; a first slider 35, which is slidably set in the slide groove 34; a second connecting rod 36, one end of which is fixedly connected to the first slider 35; a second slider 37, the inner side wall of the second slider 37 is threadedly connected to the rotating screw 33, and the outer side wall of the second slider 37 is fixedly connected to the other end of the second connecting rod 36.

[0060] In this embodiment, by rotating the screw rod 33, due to the limitation of the first slider 35 and the second connecting rod 36, the screw rod 33 drives the second slider 37 to move, and the second slider 37 drives the second connecting rod 36, so that the first slider 35 fixedly connected to the second connecting rod 36 slides in the slide groove 34, so that the second connecting rod 36 pushes the first connecting rod 38.

[0061] In some embodiments of the present application, the sootblowing mechanism includes: a steam inlet box 41 fixedly connected to the pushing mechanism; a steam nozzle 44 rotatably disposed at the steam outlet of the steam inlet box 41 , and the steam nozzle 44 is connected to the steam inlet box 41 .

[0062] In this embodiment, steam is introduced into the steam nozzle 44 through the steam inlet box 41, and the steam is sprayed out from the steam nozzle 44 to perform steam soot blowing on the boiler.

[0063] In some embodiments of the present application, the sootblowing mechanism further includes: a steam inlet pipe 42 , which is opened on the outer wall of the steam inlet box 41 ; and a heating pipe 43 , which is fixedly connected to the inside of the steam inlet box 41 .

[0064] In this embodiment, steam is passed into the steam inlet pipe 42, and the steam enters the steam nozzle 44 through the steam inlet pipe and the steam inlet box 41. In order to prevent condensation of steam inside the steam inlet box 41 due to too low temperature, a heating pipe 43 is provided to heat the steam inlet box 41, so that the steam cannot reach the condensation temperature, thereby reducing the probability of condensation.

[0065] In some embodiments of the present application, the steam nozzle 44 includes: a nozzle body 441, which is rotatably disposed at the steam outlet of the steam inlet box 41; and a plurality of injection pipes 442, which are uniformly disposed circumferentially on the side wall of the nozzle body 441, and the injection pipes 442 are connected to the nozzle body 441.

[0066] In this embodiment, Figure 2 As shown, the steam nozzle 44 consists of a nozzle body 441 with a hollow interior and three injection pipes 442 connected to the nozzle body 441. Steam is ejected from the outlet of the injection pipe 442 through the nozzle body 441. The ash cleaning area inside the boiler is expanded by setting the injection pipe 442 to improve work efficiency.

[0067] In some embodiments of the present application, the steam nozzle 44 also includes: a second motor 443, fixedly connected to the outer wall of the steam inlet box 41; a driving gear 444, passed through the output end of the second motor 443; a rotating tooth 445, fixedly connected to the outer wall of the nozzle body 441, and the rotating tooth 445 is meshed with the driving gear 444.

[0068] In this embodiment, the second motor 443 is started to drive the driving gear 444 to rotate, and the driving gear 444 drives the rotating tooth 445 meshing with the driving gear 444 to rotate, so that the nozzle body 441 and the injection pipe 442 rotate, thereby increasing the working area of ​​steam soot blowing and improving work efficiency.

[0069] In some embodiments of the present application, the steam nozzle 44 further includes: a cleaning sleeve 446 fixedly connected to the outer wall of the steam inlet box 41 ; and a cleaning brush 447 fixedly connected to the cleaning sleeve 446 .

[0070] In this embodiment, the cleaning sleeve 446 and the cleaning brush 447 are arranged inside the nozzle body 441. When the nozzle body 441 rotates, the cleaning brush 447 cleans the dust and condensation on the inner wall of the nozzle body 441, effectively preventing the steam nozzle 44 from being blocked.

[0071] When the utility model is in use, the sootblower device is transported by the universal wheel 11 arranged on the base 1. After the sootblower device is transported to an appropriate position, the hydraulic rod 2 is started to control the lifting and lowering, the sootblower mechanism is aimed at the boiler, the first motor 32 is started to drive the rotating screw 33 to rotate, thereby driving the first slider 35 to move forward, so that the second connecting rod 36 drives the first connecting rod 38 to extend forward, and pushes the connecting plate 39 to drive the steam inlet box 41 and the steam nozzle 44 to move forward, so that the steam nozzle 44 extends into the boiler, and the steam enters the steam inlet box 41 through the steam inlet port and passes through the nozzle body 441 and then is sprayed into the boiler through the injection pipe 442. At this time, the heating pipe 43 is turned on to heat the steam inlet box 41, and at the same time, the second motor 443 is started to rotate the driving gear 444, so as to drive the rotating gear 445 to rotate so as to rotate the nozzle body 441 and the injection pipe 442, thereby increasing the steam sootblowing area. The rotation of the nozzle body 441 can enable the cleaning brush 447 to clean the inner wall of the nozzle body 441 to prevent the nozzle from being blocked.

[0072] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A boiler steam sootblowing control device, characterized in that: include: Base; A hydraulic rod, one end of which is fixedly connected to the base; A pushing mechanism, fixedly connected to the other end of the hydraulic rod; A soot blowing mechanism, fixedly connected to the pushing mechanism; The soot blowing mechanism comprises: A steam inlet box, fixedly connected to the pushing mechanism; A steam nozzle is rotatably disposed at the steam outlet of the steam inlet box, and the steam nozzle is connected to the steam inlet box; The soot blowing mechanism also includes: A steam inlet pipe is provided on the outer wall of the steam inlet box; The heating pipe is fixedly connected to the interior of the steam inlet box.

2. A boiler steam sootblowing control device according to claim 1, characterized in that: A universal wheel is movably mounted on the bottom of the base.

3. A boiler steam sootblowing control device according to claim 1, characterized in that: The driving mechanism comprises: A housing, fixedly connected to the hydraulic rod; A first motor is arranged inside the housing and close to one end of the hydraulic rod; A push rod assembly, one end of which is fixedly connected to the output end of the first motor; The connecting plate is fixedly connected to the other end of the push rod assembly.

4. A boiler steam sootblowing control device as claimed in claim 3, characterized in that: The push rod assembly comprises: A rotating screw rod is fixedly connected to the output end of the first motor; A sliding assembly, slidably connected to the rotating screw; A first connecting rod has one end fixedly connected to the sliding assembly and the other end fixedly connected to the connecting plate.

5. A boiler steam sootblowing control device as claimed in claim 4, characterized in that: The sliding assembly comprises: Slide grooves are provided on both sides of the shell; A first sliding block, slidably disposed in the sliding groove; A second connecting rod, one end of which is fixedly connected to the first sliding block; The second slider has an inner side wall threadedly connected to the rotating screw rod, and an outer side wall of the second slider is fixedly connected to the other end of the second connecting rod.

6. A boiler steam sootblowing control device according to claim 1, characterized in that: The steam spray head comprises: A nozzle body is rotatably disposed at the steam outlet of the steam inlet box; There are several injection pipes, which are evenly arranged on the side wall of the nozzle body along the circumferential direction, and the injection pipes are connected to the nozzle body.

7. A boiler steam sootblowing control device according to claim 6, characterized in that: The steam spray head also includes: A second motor is fixedly connected to the outer wall of the steam inlet box; A driving gear, which is arranged at the output end of the second motor; The rotating teeth are fixedly connected to the outer wall of the nozzle body, and the rotating teeth are meshed with the driving gear.

8. A boiler steam sootblowing control device as claimed in claim 6, characterized in that: The steam spray head also includes: A cleaning sleeve, fixedly connected to the outer wall of the steam inlet box; A cleaning brush is fixedly connected to the cleaning sleeve.

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