A boiler burner start-stop auxiliary mechanism

Abstract

The utility model provides a boiler burner throw-in and throw-out auxiliary mechanism, including a boiler burner, a mobile lifting mechanism, a support frame, and an inclination adjustment mechanism. The boiler burner includes a burner body, a pair of pipes is arranged at the front of the burner body, a combustion tube is sleeved in the butt-joint pipe, a butt-joint flange with the upper end tilted forward is arranged at the front end of the butt-joint pipe, the mobile lifting mechanism can realize the horizontal movement and up and down lifting of the support frame, the support frame is a square hollow structure, the boiler burner is located inside the support frame, a first connecting rod is fixedly arranged on the upper part of the butt-joint pipe and the first connecting rod is located behind the butt-joint flange, a second connecting rod hingedly connected to the upper part of the first connecting rod is arranged on the upper side of the front part of the support frame, and the inclination adjustment mechanism can realize the swing adjustment and positioning of the boiler burner as a whole. The throw-in and throw-out auxiliary mechanism is used to realize the floor operation of the boiler burner, which greatly improves the use safety and maintenance convenience of the boiler burner.

Description

Technical Field

[0001] The utility model relates to the technical field of boiler combustion operation assisted by a boiler combustion aid, in particular to a boiler burner launching and retreating auxiliary mechanism. Background Art

[0002] Biomass power generation is a type of power generation that uses biomass energy and is a type of renewable energy power generation. Waste incineration power generation is a type of biomass power generation. At present, in the process of waste incineration power generation, the fermented waste is generally incinerated in a boiler. When the boiler is incinerating waste, it is generally necessary to use a boiler burner to start the combustion, and then withdraw the boiler burner after the combustion is stable; in the process of boiler burning waste, if it is found that the combustion of the waste is not reasonable, it is necessary to use the boiler burner again to assist combustion until the waste combustion returns to normal. In some waste incineration power plants, the boiler burner is generally installed near the boiler combustion port by high-altitude suspension. Because the boiler burner is not used very frequently, it is suspended in the air most of the time. Because the boiler burner is large and heavy, it may fall at any time when suspended in the air for a long time. When the inspection personnel pass by, they may be hit by it or the equipment may be damaged. Furthermore, the movement of the suspended boiler burner is relatively laborious and inefficient. The low operating efficiency of the boiler burner affects the auxiliary efficiency of the boiler combustion. Furthermore, the boiler burner is suspended in the air, which makes the daily maintenance operation of the boiler burner relatively cumbersome. Utility Model Content

[0003] The purpose of the utility model is to provide a boiler burner throw-in and throw-out auxiliary mechanism, which is used to realize the ground operation of the boiler burner, greatly improving the use safety and maintenance convenience of the boiler burner. At the same time, the throw-in and throw-out auxiliary mechanism is used to realize the convenient operation of the boiler burner, which can not only reduce the operating labor intensity but also improve the combustion efficiency.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a boiler burner insertion and withdrawal auxiliary mechanism, including a boiler burner, the boiler burner includes a burner body, a pair of pipes are arranged at the front part of the burner body, a combustion tube is sleeved in the butt pipes, and a butt flange with an upper end tilted forward is arranged at the front end of the butt pipe. The insertion and withdrawal auxiliary mechanism also includes a movable lifting mechanism, a support frame, and an inclination adjustment mechanism. The movable lifting mechanism can realize the horizontal movement and up and down lifting of the support frame. The support frame is a square hollow structure. The boiler burner is located inside the support frame. A first connecting rod is fixedly arranged on the upper part of the butt pipe and the first connecting rod is located behind the butt flange. A second connecting rod hingedly connected to the upper part of the first connecting rod is arranged on the upper side of the front part of the support frame. The inclination adjustment mechanism can realize the swing adjustment and positioning of the boiler burner as a whole around the hinge axis of the first connecting rod and the second connecting rod.

[0005] Preferably, the inclination adjustment mechanism includes a linear reciprocating mechanism and an articulated connecting rod. The linear reciprocating mechanism is arranged on the upper rear side of the support frame, and the linear moving end of the linear reciprocating mechanism is hingedly connected to one end of the articulated connecting rod, and the other end of the articulated connecting rod is hingedly connected to the L-shaped support ear on the upper rear side of the burner body.

[0006] Furthermore, the linear reciprocating mechanism is an electric push rod or an electro-hydraulic push rod or a hydraulic cylinder.

[0007] Furthermore, two swing auxiliary guide plates are arranged on the bottom plate of the support frame and are distributed on the left and right sides of the burner body. An arc guide groove coaxial with the hinge axis of the first connecting rod and the second connecting rod is arranged on each of the swing auxiliary guide plates. A guide shaft is fixedly arranged on the left and right sides of the burner body and is placed in the corresponding arc guide groove.

[0008] Furthermore, the upper and lower arc-shaped side walls of the arc-shaped guide groove fit with the corresponding outer side walls of the guide shaft.

[0009] Furthermore, the mobile lifting mechanism is a movable scissor lift, and the bottom plate of the support frame is fixedly arranged on the lifting platform of the scissor lift.

[0010] Furthermore, the mobile lifting mechanism includes a mobile base plate, four mobile wheels are arranged around the bottom of the mobile base plate, four lifting guide rods are arranged around the upper part of the mobile base plate, the fixed tube of the lifting guide rod is fixedly set on the mobile base plate, the movable rod of the lifting guide rod is fixedly set at the lower part of the base plate and the movable rod is sleeved in the fixed tube, and an electric push rod is arranged on the upper part of the mobile base plate, and the telescopic end of the electric push rod is connected to the bottom of the base plate.

[0011] Furthermore, the movable wheel is a universal wheel with a braking function.

[0012] The beneficial effects of the utility model are as follows: the utility model has a simple structure and is convenient to manufacture; the mobile lifting mechanism and the support frame can be used to support the boiler burner on the ground, thereby effectively avoiding the dangerous situation of the boiler burner falling from the air, thereby improving the safety of the boiler burner, and at the same time, it is also convenient for the staff to stand on the ground to carry out daily maintenance work on the boiler burner; the movement and lifting performance of the mobile lifting mechanism and the function of adjusting the placement inclination angle of the boiler burner by the linear reciprocating drive mechanism can smoothly realize the docking of the boiler burner and the boiler combustion-supporting port, thereby not only reducing the labor intensity of the burner docking operation, but also improving the docking efficiency; the docking efficiency is high, and the problem of insufficient boiler combustion can be quickly solved, thereby ensuring the effective and normal operation of the boiler combustion; the staff can adjust the placement angle of the boiler burner by controlling the telescopic stroke of the linear reciprocating actuator, so that the docking flange can quickly achieve the desired fit with the boiler. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] 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 or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some preferred embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the state in which the utility model is docked and fixed at the combustion-supporting port of a boiler;

[0016] Figure 3 for Figure 1 Enlarged view of point A in the middle;

[0017] Figure 4 for Figure 1 Enlarged view of point B in the middle;

[0018] In the figure: 11 burner body, 12 docking tube, 121 docking flange, 1211 through hole, 122 first connecting rod, 13 combustion tube, 14 L-shaped lug, 15 guide shaft, 21 movable bottom plate, 22 movable wheel, 23 lifting guide rod, 231 fixed tube, 232 movable rod, 24 electric push rod, 3 support frame, 31 second connecting rod, 32 swing auxiliary guide plate, 321 arc guide groove, 33 bottom plate, 41 linear reciprocating actuator, 42 hinged connecting rod, 5 boiler wall, 51 combustion port. DETAILED DESCRIPTION

[0019] The following will be combined with specific embodiments and attached Figure 1-4 , the technical solutions in the embodiments of the utility model are clearly and completely described. Obviously, the described embodiments are only part of the preferred embodiments of the utility model, not all of the embodiments. Those skilled in the art can make similar modifications without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0020] When the waste incineration boiler is burning the waste after pretreatment, the boiler generally uses a boiler combustion aid to ignite the waste in the boiler. At the same time, in the event of unsatisfactory combustion, the boiler burner is used again to assist in the combustion of the waste. In order to facilitate the ignition and combustion assistance of the waste by the boiler burner, a combustion-assisting port 51 is generally opened at a suitable position of the boiler wall 5, and the combustion tube 13 of the boiler burner extends into the boiler through the combustion-assisting port 51. During the ignition or combustion-assisting process, the boiler burner and the boiler wall 5 are generally fixedly connected by bolting. Specifically, a plurality of bolts are fixedly provided on the outer periphery of the combustion-assisting port 51, and a plurality of through holes 1211 corresponding to the bolts are provided on the docking flange 121 of the boiler burner. After the bolts are inserted into the through holes 1211, the docking flange 121 is pressed and fixed to the boiler wall 5 by nuts. When the docking flange 121 is fixed, the combustion tube 13 is in an inclined upward state in the boiler, which is conducive to the combustion tube 13 to ignite the waste. The combustion port 51 cannot be opened too large, otherwise the combustion tube 13 must be in a horizontal state when it is inserted into the combustion-supporting port 51. When the combustion tube 13 remains in a horizontal state and enters the combustion-supporting port 51, when the upper part of the docking flange 121 comes into contact with the boiler wall 5, the advancement of the combustion tube 13 is stopped, and then the placement angle of the boiler burner is slowly adjusted to make the docking flange 121 parallel to the boiler wall 5. After they are parallel, the boiler burner is pushed forward again, and then the docking flange 121 is fit with the boiler wall 5, and then the boiler burner is fixed.

[0021] The utility model provides a boiler burner start-stop auxiliary mechanism (such as Figure 1As shown), it includes a boiler burner, a movable lifting mechanism, a support frame 3, and an inclination adjustment mechanism. The boiler burner is a well-known mature technical product in the technical field. Therefore, in the technical field, the working principle of the boiler burner will not be described in detail, but only a brief introduction to the structure of the boiler burner will be given; the boiler burner includes a burner body 11, a pair of pipes 12 are arranged at the front of the burner body 11, the butt pipes 12 are fixedly connected to the burner body 11, a combustion tube 13 is sleeved in the butt pipe 12, and the combustion tube 13 is the fire outlet of the boiler burner. A docking flange 121 with an upper end tilted forward is arranged at the front end of the butt pipe 12. The docking flange 121 is mainly used to realize the fixed connection between the boiler burner and the boiler wall 5. Specifically, a plurality of through holes 1211 corresponding to the bolts arranged around the combustion-supporting port 51 of the boiler wall 5 are arranged on the docking flange 121. By adjusting the inclination angle of the docking flange 121, the bolts are all penetrated into the corresponding through holes 1211, and then the subsequent fixing can be carried out. Fixed operation; the mobile lifting mechanism can realize the horizontal movement and up and down lifting of the support frame 3. The support frame 3 is a square hollow structure. The boiler burner is located inside the support frame 3. The horizontal movement function and up and down lifting function of the mobile lifting mechanism can realize the horizontal movement and up and down adjustment movement of the boiler burner, which is convenient for adjusting the initial position of the boiler burner relative to the combustion-supporting port 51. A first connecting rod 122 is fixedly arranged on the upper part of the docking pipe 12 and the first connecting rod 122 is located behind the docking flange 121. A second connecting rod 31 is hingedly connected to the upper part of the first connecting rod 122 on the upper side of the front part of the support frame 3. The hinged connection between the first connecting rod 122 and the second connecting rod 31 can realize the swing of the boiler burner in the vertical plane, and then the inclination angle adjustment of the docking flange 121 is synchronously realized. The inclination adjustment mechanism can realize the swing adjustment and positioning of the boiler burner as a whole around the hinge axis of the first connecting rod 122 and the second connecting rod 31. In the initial stage of the boiler burner docking installation, the combustion tube 13 is generally kept horizontally placed. When the combustion tube 13 completely enters the combustion-supporting port 51, the inclination angle of the docking flange 121 is adjusted by controlling the operation of the inclination adjustment mechanism.

[0022] On the basis of the above embodiments, the specific implementation of the inclination adjustment mechanism is as follows: the inclination adjustment mechanism includes a linear reciprocating mechanism 41 and an articulated connecting rod 42, the linear reciprocating mechanism 41 is arranged on the upper rear side of the support frame 3, and the linear moving end of the linear reciprocating mechanism 41 is hingedly connected to one end of the articulated connecting rod 42, and the other end of the articulated connecting rod 42 is hingedly connected to the L-shaped support ear 14 on the upper rear side of the burner body 11. Since the upper front side of the burner body 11 is hingedly fixed by the first connecting rod 122 and the second connecting rod 31, when the linear moving end of the linear reciprocating mechanism 41 drives the articulated connecting rod 42 to move up and down, the swing adjustment of the burner body 11 is realized, and then the inclination angle adjustment of the docking flange 121 is realized. In this specific embodiment, the linear reciprocating mechanism 41 is an electric push rod or an electro-hydraulic push rod or a hydraulic cylinder. When the linear reciprocating drive mechanism 41 is an electric push rod, the electric push rod is vertically arranged upside down on the upper rear side of the support frame 3 , and the movable telescopic end of the electric push rod is hingedly connected to the rear end of the hinge connecting rod 42 . When the burner body 11 is swung and adjusted, in order to improve its swing safety and stability, two swing auxiliary guide plates 32 distributed on the left and right sides of the burner body 11 are provided on the bottom plate 33 of the support frame 3. The swing auxiliary guide plates 32 and the bottom plate 33 are fixedly connected together by welding. An arc guide groove 321 coaxial with the hinge axis of the first connecting rod 122 and the second connecting rod 31 is provided on each of the swing auxiliary guide plates 32. A guide shaft 15 set in the corresponding arc guide groove 321 is fixedly provided on the left and right sides of the burner body 11. The guide shaft 15 slides in the arc guide groove 321 following the burner body 11. In actual application, when the upper and lower arc side walls of the arc guide groove 321 are made to fit with the outer side walls of the corresponding guide shaft 15, the guide shaft 15 is used to realize the up and down swing limit of the burner body 11 in the vertical plane.

[0023] In this specific embodiment, two specific embodiments of the mobile lifting mechanism are designed. The specific implementation method of the first specific embodiment of the mobile lifting mechanism is as follows: the mobile lifting mechanism is a movable scissor lift, and the bottom plate 33 of the support frame 3 is fixedly arranged on the lifting platform of the scissor lift. The scissor lift is a mature technical product already available on the market, so the detailed structure and working principle of the scissor lift are no longer described in detail. The staff can realize the horizontal movement and up and down lifting adjustment of the burner body 11 by controlling the scissor lift; the specific implementation method of the second specific embodiment of the mobile lifting mechanism is as follows: the mobile lifting mechanism includes a mobile bottom plate 21, and the mobile bottom plate 2 Four moving wheels 22 are arranged around the bottom of the mobile base plate 21, and the four moving wheels 22 are used to realize the horizontal movement of the mobile base plate 21. Four lifting guide rods 23 are arranged around the upper part of the mobile base plate 21. The fixed cylinder 231 of the lifting guide rod 23 is fixedly arranged on the mobile base plate 21. The movable rod 232 of the lifting guide rod 23 is fixedly arranged at the lower part of the base plate 33 and the movable rod 232 is sleeved in the fixed cylinder 231. The fixed cylinder 231 is used to realize the lifting and guiding of the movable rod 232. An electric push rod 24 is arranged on the upper part of the mobile base plate 21. The telescopic end of the electric push rod 24 is connected to the bottom of the base plate 33. The lifting and lowering adjustment of the base plate 33 is realized by the telescopic end of the electric push rod 24. In order to facilitate the stable placement of the mobile base plate 21 on the ground, the moving wheel 22 can be a universal wheel with a brake.

[0024] The operation process of the utility model for fixed placement on the boiler wall 5 is as follows: the staff first uses the linear reciprocating actuator 41 to adjust the angle of the burner body 11 so that the combustion tube 13 is basically in a horizontal placement state, and then moves the entire mechanism so that the utility model moves to the area near the combustion port 51. Then, by repeatedly controlling the electric push rod 24 and moving the entire mechanism, the combustion tube 13 is basically at the same height as the combustion port 51. After adjusting the height of the combustion tube 13, the entire mechanism is pushed to move horizontally so that the combustion tube 13 is smoothly inserted into the combustion port 51. When the upper part of the docking flange 121 contacts the boiler wall 5, the movement of the mechanism is stopped. Then, the linear reciprocating actuator 41 is controlled to make the burner body 1 1 performs downward swinging movement. During the downward swinging movement, the inclination angle of the docking flange 121 is always observed. When the docking flange 121 is basically parallel to the boiler wall 5, the downward swinging movement of the burner body 11 is stopped. Then, the pushing mechanism continues to move toward the boiler wall 5. During the movement, it is necessary to ensure that the bolts on the boiler wall 5 are inserted into the corresponding through holes 1211. When the docking flange 121 is fitted with the boiler wall 5, nuts are screwed on the bolts and tightened to achieve fixed connection between the docking flange 121 and the boiler wall 5, and also to achieve fixation of the burner body 11 on the boiler wall 5. After the burner body 11 is fixed, the universal wheel with a brake is braked to complete the entire boiler burner deployment process.

[0025] In the present utility model, "upper", "lower", "front", "back", "left" and "right" are relative positions used to conveniently describe positional relationships, and therefore cannot be understood as absolute positions to limit the scope of protection.

[0026] Except for the technical features described in the specification, all other technical features are known technologies to those skilled in the art.

[0027] The above description in combination with the accompanying drawings has detailed the preferred implementation modes and embodiments of the utility model, but the utility model is not limited to the above implementation modes and embodiments. For ordinary technicians in this technical field, several improvements and modifications can be made without departing from the concept of the utility model, and these improvements and modifications should also be regarded as the protection scope of the utility model.

Claims

1. A boiler burner insertion and withdrawal auxiliary mechanism, comprising a boiler burner, wherein the boiler burner comprises a burner body, a pair of pipes is arranged at the front of the burner body, a combustion tube is sleeved in the butt pipe, and a butt flange is arranged at the front end of the butt pipe with the upper end tilted forward, wherein the butt pipe is characterized in that: The insertion and retraction auxiliary mechanism also includes a mobile lifting mechanism, a support frame, and an inclination adjustment mechanism. The mobile lifting mechanism can realize the horizontal movement and up and down lifting of the support frame. The support frame is a square hollow structure. The boiler burner is located inside the support frame. A first connecting rod is fixedly arranged on the upper part of the docking pipe and the first connecting rod is located behind the docking flange. A second connecting rod is hingedly connected to the upper part of the first connecting rod on the upper side of the front part of the support frame. The inclination adjustment mechanism can realize the swing adjustment and positioning of the boiler burner as a whole around the hinge axis of the first connecting rod and the second connecting rod.

2. A boiler burner launching and retreating auxiliary mechanism according to claim 1, characterized in that: The inclination adjustment mechanism includes a linear reciprocating mechanism and an articulated connecting rod. The linear reciprocating mechanism is arranged on the upper rear side of the support frame, and the linear moving end of the linear reciprocating mechanism is hingedly connected to one end of the articulated connecting rod, and the other end of the articulated connecting rod is hingedly connected to the L-shaped support ear on the upper rear side of the burner body.

3. A boiler burner launching and retreating auxiliary mechanism according to claim 2, characterized in that: The linear reciprocating mechanism is an electric push rod or an electro-hydraulic push rod or a hydraulic cylinder.

4. A boiler burner launching and retreating auxiliary mechanism according to claim 2, characterized in that: Two swing auxiliary guide plates are arranged on the bottom plate of the support frame and are distributed on the left and right sides of the burner body. An arc guide groove coaxial with the hinge axis of the first connecting rod and the second connecting rod is arranged on each of the swing auxiliary guide plates. A guide shaft disposed in the corresponding arc guide groove is fixedly arranged on the left and right sides of the burner body.

5. A boiler burner launching and retreating auxiliary mechanism according to claim 4, characterized in that: The upper and lower arc-shaped side walls of the arc-shaped guide groove are in contact with the corresponding outer side walls of the guide shaft.

6. A boiler burner launching and retreating auxiliary mechanism according to claim 4, characterized in that: The mobile lifting mechanism is a movable scissor lift, and the bottom plate of the support frame is fixedly arranged on the lifting platform of the scissor lift.

7. A boiler burner launching and retreating auxiliary mechanism according to claim 4, characterized in that: The mobile lifting mechanism includes a mobile base plate, four mobile wheels are arranged around the bottom of the mobile base plate, four lifting guide rods are arranged around the upper part of the mobile base plate, the fixed tube of the lifting guide rod is fixedly arranged on the mobile base plate, the movable rod of the lifting guide rod is fixedly arranged on the lower part of the base plate and the movable rod is sleeved in the fixed tube, and an electric push rod is arranged on the upper part of the mobile base plate, and the telescopic end of the electric push rod is connected to the bottom of the base plate.

8. A boiler burner launching and retreating auxiliary mechanism according to claim 7, characterized in that: The moving wheel is a universal wheel with a braking function.

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