Efficient coal-fired boiler pipeline injection equipment
By designing an efficient injection device including a pipeline fixing sleeve, a connecting box and a PLC control box, the use of air and fuel intake pipe combined with a pulse valve to achieve direct gas alignment pipe injection, the high cost and cleaning of existing equipment are solved. The problem of low efficiency achieves efficient and automated dust cleaning effect.
Patent Information
- Application Number
- CN202420219519.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-29
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-01-29
AI Technical Summary
The existing coal-fired boiler pipeline spraying equipment is costly and it is impossible to spray each pipeline efficiently alone, resulting in low dust cleaning efficiency and affecting the boiler combustion effect.
An efficient injection device including a pipeline fixing sleeve, a connecting box and a PLC control box is designed. The air and fuel intake pipe are combined with a pulse valve to achieve direct gas alignment of the pipe, and the slight rise of the air injection pipe is controlled through the hydraulic cylinder and the air pump. and descending, each pipe is cleaned individually using pulse blowing technology.
No gas injection is required, which saves costs, improves the efficiency and quality of dust cleaning in the inner wall of the boiler pipe, realizes automatic processing, and improves the cleaning effect.
Smart Images
Figure CN222186982U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of coal-fired boiler pipeline injection, in particular to a highly efficient coal-fired boiler pipeline injection device. Background Art
[0002] When a coal-fired boiler burns fuel, it is often necessary to transport the gas through a pipeline to the combustion furnace, and use the gas combustion to burn the coal. When the coal is burning and the gas stops being transported, a large amount of dust will fall into the inner wall of the pipeline. The long-term accumulation of dust will cause the diameter of the pipeline to become smaller, the gas delivery volume to decrease, and also affect the combustion of the coal. Therefore, it is necessary to regularly spray and remove dust from the pipeline. The existing spraying and dust removal is often carried out through gas purging. Gas purging is not only costly, but also cannot be sprayed on each pipeline separately. Gas purging cannot control the direct blowing of gas, resulting in low purging efficiency and poor purging effect, which reduces the dust cleaning quality in the boiler pipeline. For this purpose, an efficient coal-fired boiler pipeline spraying equipment is provided. Utility Model Content
[0003] The purpose of the utility model is to provide a high-efficiency coal-fired boiler pipeline injection device to solve the problems raised by the above-mentioned background technology in view of the defects of the prior art.
[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-efficiency coal-fired boiler pipeline injection equipment, comprising a pipeline fixing sleeve, a first connecting box, a second connecting box and a PLC control box, wherein a plurality of boiler fuel pipelines are arranged inside the pipeline fixing sleeve, the top of the boiler fuel pipeline is connected to an exhaust pipe, the bottom of the boiler fuel pipeline is connected to the first connecting box through a sealing connecting plate, a first solenoid valve is installed at the bottom of the first connecting box, a fuel intake pipe is connected to one side of the first connecting box, a third solenoid valve is installed on the fuel intake pipe, an air intake pipe is connected to the other side of the first connecting box, a second solenoid valve is installed on the air intake pipe, a hydraulic cylinder is installed at the bottom of the second connecting box, a plurality of air injection pipes matching the boiler fuel pipeline are installed at the top of the second connecting box, and a pulse valve is installed on the air injection pipe.
[0005] As a preferred technical solution of the utility model, the boiler fuel pipeline is connected to the sealing connection plate by welding, and the sealing connection plate is connected to the top of the first connection box by welding.
[0006] As a preferred technical solution of the utility model, the air intake pipe and the fuel intake pipe are respectively welded to the two ends of the first connecting box.
[0007] As a preferred technical solution of the utility model, the second connection box is installed on the top of the hydraulic cylinder by bolts, the hydraulic cylinder is connected to the hydraulic oil pump through a hydraulic oil pipe, and the hydraulic oil pump is connected to the hydraulic oil tank through a hydraulic oil pipe.
[0008] As a preferred technical solution of the present invention, the second connection box is connected to the air pump via a gas delivery hose.
[0009] As a preferred technical solution of the utility model, the PLC control box is electrically connected to the first solenoid valve, the second solenoid valve, the third solenoid valve, the pulse valve and the air pump respectively.
[0010] The beneficial effects of the utility model are as follows: the spraying equipment does not need to use gas for spraying, thus saving gas costs; the gas is directly aimed at the pipeline, with greater impact force; and each boiler pipeline can be sprayed separately, and a pulse spraying method is adopted, thereby improving the cleaning efficiency and quality of dust on the inner wall of the boiler pipeline, and automatic spraying can be realized, with a high degree of automation, which is convenient for people to use. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a structural schematic diagram of the utility model;
[0012] Figure 2 It is a schematic diagram of the bottom structure of the connection box of the utility model.
[0013] In the figure: pipeline fixing sleeve 1, boiler fuel pipeline 2, first connecting box 3, second connecting box 4, sealing connecting plate 5, exhaust pipe 6, air intake pipe 7, fuel intake pipe 8, third solenoid valve 9, second solenoid valve 10, air injection pipe 11, hydraulic cylinder 12, first solenoid valve 13, air delivery hose 14, pulse valve 15. DETAILED DESCRIPTION
[0014] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.
[0015] Example: See Figure 1-2The utility model provides a technical solution: an efficient coal-fired boiler pipeline injection equipment, including a pipeline fixing sleeve 1, a first connecting box 3, a second connecting box 4 and a PLC control box, a plurality of boiler fuel pipelines 2 are arranged inside the pipeline fixing sleeve 1, the top of the boiler fuel pipeline 2 is connected with an exhaust pipe 6, the bottom of the boiler fuel pipeline 2 is connected to the first connecting box 3 through a sealing connecting plate 5, a first solenoid valve 13 is installed at the bottom of the first connecting box 3, a fuel intake pipe 8 is connected to one side of the first connecting box 3, a third solenoid valve 9 is installed on the fuel intake pipe 8, an air intake pipe 7 is connected to the other side of the first connecting box 3, a second solenoid valve 10 is installed on the air intake pipe 7, a hydraulic cylinder 12 is installed at the bottom of the second connecting box 4, a plurality of air injection pipes 11 matching the boiler fuel pipeline 2 are installed on the top of the second connecting box 4, and a pulse valve 15 is installed on the air injection pipe 11.
[0016] The boiler fuel pipeline 2 is connected to the sealing connection plate 5 by welding, and the sealing connection plate 5 is connected to the top of the first connection box 3 by welding.
[0017] The air intake pipe 7 and the fuel intake pipe 8 are welded to both ends of the first connection box 3 respectively.
[0018] The second connecting box 4 is installed on the top of the hydraulic cylinder 12 by bolts. The hydraulic cylinder 12 is connected to the hydraulic oil pump through a hydraulic oil pipe. The hydraulic oil pump is connected to the hydraulic oil tank through a hydraulic oil pipe. The hydraulic oil pump is used to supply oil to the hydraulic cylinder 12, so that the second connecting box 4 rises slowly.
[0019] The second connection box 4 is connected to the air pump via a gas delivery hose 14 , and the air pump is used to supply gas to the second connection box 4 .
[0020] The PLC control box is electrically connected to the first solenoid valve 13, the second solenoid valve 10, the third solenoid valve 9, the pulse valve 15 and the air pump, respectively, and the PLC control box is used to control the first solenoid valve 13, the second solenoid valve 10, the third solenoid valve 9, the pulse valve 15 and the air pump to power on and operate.
[0021] Working principle: A highly efficient coal-fired boiler pipeline injection device. When in use, by opening the third solenoid valve 9 and the second solenoid valve 10, the gas is transported to the first connecting box 3 through the fuel intake pipe 8, and then transported to the boiler fuel pipeline 2 through the first connecting box 3, and then transported to the exhaust pipe 6 through the boiler fuel pipeline 2, and then transported to the boiler through the exhaust pipe 6. When it is necessary to spray the coal-fired boiler pipeline, the third solenoid valve 9 and the second solenoid valve 10 are closed, and then the first solenoid valve 13 at the bottom of the first connecting box 3 is opened. At the same time, the hydraulic oil pump works to suck the hydraulic oil in the hydraulic oil tank into the hydraulic cylinder 12, so that the second connecting box 4 rises slowly, so that the gas injection pipe 11 passes through the first solenoid valve 13, so that the top of the gas injection pipe 11 is sealed with the bottom of the boiler fuel pipeline 2. Sealed contact, at the same time, by opening the pulse valves 15 switches on different gas injection pipes 11 in turn, pulse gas is quickly blown into the boiler fuel pipeline 2, so as to clean the dust on the inner wall of the boiler fuel pipeline 2, and the pulse valves 15 are opened in turn to achieve the maximum gas flow sprayed from each gas injection pipe 11, so as to achieve the effect of efficient blowing. When the blowing of each gas injection pipe 11 is completed, the hydraulic cylinder 12 slowly descends, so that the gas injection pipe 11 is pulled out of the first connecting box 3, and then the first solenoid valve 13 is closed, and the third solenoid valve 9 and the second solenoid valve 10 are opened, and the gas enters the first connecting box 3 through the fuel intake pipe 8, and the air enters the first connecting box 3 through the air intake pipe 7 to mix with the gas, and is transported to the boiler through the boiler fuel pipeline 2 for combustion.
[0022] The spraying equipment does not need to use gas for spraying, saving gas costs. The gas is directly aimed at the pipeline, which has greater impact force. In addition, each boiler pipeline can be sprayed separately. The pulse spraying method is adopted to improve the cleaning efficiency and quality of the dust on the inner wall of the boiler pipeline. It can realize automatic spraying treatment, has a high degree of automation, and is convenient for people to use.
[0023] The above embodiments only express the implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.
Claims
1. An efficient coal-fired boiler pipeline injection device, comprising a pipeline fixing sleeve (1), a first connection box (3), a second connection box (4) and a PLC control box, characterized in that: A plurality of boiler fuel pipelines (2) are arranged inside the pipeline fixing sleeve (1), the top of the boiler fuel pipeline (2) is connected to an exhaust pipe (6), the bottom of the boiler fuel pipeline (2) is connected to a first connection box (3) through a sealing connection plate (5), a first solenoid valve (13) is installed at the bottom of the first connection box (3), a fuel intake pipe (8) is connected to one side of the first connection box (3), a third solenoid valve (9) is installed on the fuel intake pipe (8), an air intake pipe (7) is connected to the other side of the first connection box (3), a second solenoid valve (10) is installed on the air intake pipe (7), a hydraulic cylinder (12) is installed at the bottom of the second connection box (4), a plurality of air injection pipes (11) matching the boiler fuel pipeline (2) are installed at the top of the second connection box (4), and a pulse valve (15) is installed on the air injection pipe (11).
2. The efficient coal-fired boiler pipeline injection equipment according to claim 1 is characterized in that: The boiler fuel pipeline (2) is connected to the sealing connection plate (5) by welding, and the sealing connection plate (5) is connected to the top of the first connection box (3) by welding.
3. The efficient coal-fired boiler pipeline injection equipment according to claim 1 is characterized in that: The air intake pipe (7) and the fuel intake pipe (8) are respectively welded to the two ends of the first connection box (3).
4. The efficient coal-fired boiler pipeline injection equipment according to claim 1 is characterized in that: The second connection box (4) is mounted on the top of the hydraulic cylinder (12) by means of bolts; the hydraulic cylinder (12) is connected to a hydraulic oil pump by means of a hydraulic oil pipe; and the hydraulic oil pump is connected to a hydraulic oil tank by means of a hydraulic oil pipe.
5. The efficient coal-fired boiler pipeline injection equipment according to claim 1 is characterized in that: The second connection box (4) is connected to the air pump via a gas delivery hose (14).
6. The efficient coal-fired boiler pipeline injection equipment according to claim 1 is characterized in that: The PLC control box is electrically connected to the first solenoid valve (13), the second solenoid valve (10), the third solenoid valve (9), the pulse valve (15) and the air pump respectively.