Burner center pipeline adjusting device capable of achieving automatic adjustment

Abstract

The utility model relates to the technical field of combustors, in particular to a combustor center pipeline adjusting device capable of being automatically adjusted, which comprises a combustor center pipeline adjusting device. The burner center pipeline adjusting device comprises a gas pipe switching section, a center pipe cavity, an outer pipe cavity, an inner pipe cavity, a long gas branch pipe, a short gas branch pipe, a gas spraying pipe, a valve body, a servo actuator, a coupler, an inner pipe, an outer pipe, a tail end cover, a sealing gasket, a positioning bolt, a rotational flow disc supporting column and a rotational flow disc. The gas pipe switching section is arranged in the center pipe cavity in a penetrating mode, and the center pipe cavity is communicated with the inner pipe cavity and the outer pipe cavity. The technical problems in comparison patents can be effectively solved, proportional control can be carried out on gas of the inner pipeline and the outer pipeline, gas inlet of the gas branch pipeline is controlled, the flame shape is adjusted, and therefore the energy-saving emission requirement is met.

Description

Technical Field

[0001] The utility model relates to the technical field of burners, in particular to an automatically adjustable burner central pipeline regulating device. Background Art

[0002] With the development of society, environmental problems have become increasingly prominent, and the international community has become increasingly concerned about the impacts and consequences of environmental pollution.

[0003] In my country, with the development of economic construction, the environmental problems caused by the large-scale use of fossil energy are particularly prominent. Acid rain, haze and other atmospheric pollution continue to cause serious harm to social development and human health. The country's requirements for energy conservation and environmental protection are becoming increasingly stringent. Therefore, the large-scale use of gas has triggered environmental protection needs for energy conservation and emissions.

[0004] As intelligent combustion technology develops, we keep pace with the times, and intelligent adjustment solutions have also become a major challenge for us.

[0005] The burner is an important component of industrial boilers and the main equipment for releasing fuel energy into thermal energy. It is particularly important to achieve energy-saving and emission requirements by intelligently adjusting the burner structure.

[0006] As a mechatronic combustion equipment with a high degree of automation, the burner can be divided into: air supply system, ignition system, detection system, fuel system, electronic control system, etc. according to the functions it realizes.

[0007] The center pipe is an important part of the fuel system. Usually, the center pipe is used as a straight-through pipe to transport fuel to the branch lines. It is impossible to individually control the air intake of some branches to achieve the purpose of regulation. Utility Model Content

[0008] The utility model aims to solve the above-mentioned shortcomings in the prior art and proposes an automatically adjustable burner central pipeline regulating device.

[0009] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0010] A burner center pipeline regulating device with automatic adjustment is designed, including a burner center pipeline regulating device, the burner center pipeline regulating device comprising a gas pipe transition section, a center tube chamber, an outer tube chamber, an inner tube chamber, a long gas branch pipe, a short gas branch pipe, a gas nozzle, a valve body, a servo actuator, a coupling, an inner tube, an outer tube, a tail end cover, a sealing gasket, a positioning bolt, a swirl disk support, and a swirl disk. The gas pipe transition section is arranged in the center tube chamber, the center tube chamber is respectively connected with the inner tube chamber and the outer tube chamber, the long gas branch pipe is connected with the inner tube chamber, the short gas branch pipe is connected with the outer tube chamber, and the ends of the long gas branch pipe and the short gas branch pipe are respectively equipped with gas nozzles;

[0011] The valve body includes a valve stem, a valve plate, an extension branch pipe, a copper sleeve, a valve body end cover, an explosion-proof cover, a first sealing ring, a second sealing ring, and a valve body bolt. The valve body is located at the end of the inner tube and is simultaneously located just above the gas pipe transition section. The valve body is mainly composed of a valve stem, a valve plate, an inner tube, and an extension branch pipe. The valve plate of the valve body is connected to the valve stem by bolts. Copper sleeves are installed at both ends of the valve stem. The left end of the valve stem is provided with an explosion-proof cover and a first sealing ring. The right end of the valve stem is provided with a sealing groove. The second sealing ring is installed inside the sealing groove. The right end of the valve stem is provided with a valve body end cover;

[0012] The tail of the outer tube is made into a flange and connected with the tail end cover by positioning bolts, and a sealing gasket is arranged at the middle position. The swirl disk is connected with the central pipeline through the swirl disk support.

[0013] In detail, the inner tube chamber and the outer tube chamber are matched in a ratio of 1.5:1.

[0014] In detail, the rotation angle of the valve plate is 0 to 90 degrees.

[0015] In detail, the gap between the valve plate and the inner tube chamber is 0.25 mm.

[0016] In detail, the first sealing ring and the second sealing ring are both made of synthetic rubber material.

[0017] In detail, the sealing gasket is made of thick asbestos board material and has a thickness of 1.5 mm.

[0018] The design scheme proposed by the utility model has the following beneficial effects during application:

[0019] 1. It can effectively solve the technical problems in the comparative patents, and can respectively control the gas in the inner and outer pipelines in proportion, thereby controlling the gas intake of the gas branch pipeline and adjusting the flame shape to achieve energy-saving emission requirements.

[0020] 2. Compared with the existing technology, the gas ratio can be intelligently adjusted according to demand inside the pipeline, the branch pipes can be controlled individually, and the space occupation can be greatly reduced, which is convenient for installation and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is the automatic adjustment structure diagram of the burner of the utility model;

[0022] Figure 2 This is a structural diagram of the central pipeline of the burner of the utility model.

[0023] In the figure: 1 gas pipe transition section, 2 central tube chamber, 3 outer tube chamber, 4 inner tube chamber, 5 long gas branch pipe, 6 short gas branch pipe, 7 gas nozzle, 8 valve body, 9 servo actuator, 10 coupling, 11 inner tube, 13 outer tube, 14 tail end cover, 15 sealing gasket, 16 positioning bolt, 17 swirl plate support, 18 swirl plate, 81 valve stem, 82 valve plate, 83 extension branch pipe, 84 copper sleeve, 85 valve body end cover, 86 explosion-proof cover, 87 first sealing ring, 88 second sealing ring, 89 valve body bolt. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] Reference Figure 1-Figure 2 An automatically adjustable central pipeline regulating device is mainly composed of a servo actuator 9, a coupling 81, an inner pipe 11, an outer pipe 13, a valve body 8, a branch pipe group (a long gas branch pipe 5 and a short gas branch pipe 6), a swirl disk 18 and the like. The valve body is adjusted by the servo actuator to change the internal pipeline gas volume and thus adjust the branch pipe air intake.

[0026] A burner center pipeline regulating device capable of automatic adjustment comprises a burner center pipeline regulating device, the burner center pipeline regulating device comprises a gas pipe transition section 1, a center tube chamber 2, an outer tube chamber 3, an inner tube chamber 4, a long gas branch pipe 5, a short gas branch pipe 6, a gas nozzle 7, a valve body 8, a servo actuator 9, a coupling 10, an inner tube 11, an outer tube 13, a tail end cover 14, a sealing gasket 15, a positioning bolt 16, a swirl disk support 17, and a swirl disk 18, the gas pipe transition section 1 is arranged throughout the center tube chamber 2, the center tube chamber 2 is respectively connected with the inner tube chamber 4 and the outer tube chamber 3, the long gas branch pipe 5 is connected with the inner tube chamber 4, the short gas branch pipe 6 is connected with the outer tube chamber 3, and the ends of the long gas branch pipe 5 and the ends of the short gas branch pipe 6 are respectively provided with gas nozzles 7;

[0027] The gas enters the central tube chamber 2 through the gas pipe transition section 1, and is divided into two paths according to a certain adjustment ratio to enter the inner tube chamber 4 and the outer tube chamber 3 respectively, and then enters the long gas branch pipe 5 and the short gas branch pipe 6 from the inner tube chamber 4 and the outer tube chamber 3 respectively, and finally is ejected through the gas nozzle 7.

[0028] The valve body 8 includes a valve stem 81, a valve plate 82, an extension branch pipe 83, a copper sleeve 84, a valve body end cover 85, an explosion-proof cover 86, a first sealing ring 87, a second sealing ring 88, and a valve body bolt 89. The valve body 8 is located at the end of the inner tube 11 and is simultaneously located on the upper side of the gas pipe transition section 1. The valve body 8 is mainly composed of the valve stem 81, the valve plate 82, the inner tube 11, and the extension branch pipe 83. The valve plate 82 of the valve body 8 is connected to the valve stem 81 through bolts 89. Copper sleeves 84 are installed at both ends of the valve stem 81. The left end of the valve stem 81 is provided with an explosion-proof cover 86 and a first sealing ring 87, and the right end of the valve stem 81 is provided with a sealing groove, and a second sealing ring 88 is installed inside the sealing groove. The ends of the valve stem 81 are provided with valve body end covers 85;

[0029] The tail of the outer tube 13 is flanged and connected to the tail end cover 14 by positioning bolts 16 , and a sealing gasket 15 is arranged in the middle, and the swirl disk 18 is connected to the central pipeline through the swirl disk support 17 .

[0030] It should be further explained that the inner tube chamber 4 and the outer tube chamber 3 are matched in a ratio of 1.5:1.

[0031] It should be further explained that the rotation angle of the valve plate 82 is from 0 degrees to 90 degrees.

[0032] It should be further explained that the gap between the valve plate 82 and the inner tube chamber 4 is 0.25 mm.

[0033] It should be further explained that the first sealing ring 87 and the second sealing ring 88 are both made of synthetic rubber material.

[0034] It should be further explained that the sealing gasket 15 is made of thick asbestos board material and has a thickness of 1.5 mm.

[0035] Working mode: The valve body has good sealing performance without air leakage, the valve stem rotates flexibly without jamming, the main body is welded, the outer pipe can be cut off during welding, V-shaped welding is adopted, and it is polished flat after welding, without defects such as sand holes and air holes. The servo actuator is an intelligent bus type, which controls the opening through analog signals, and can proportionally control the gas in the inner and outer pipelines respectively, thereby controlling the air intake of the gas branch pipeline and adjusting the flame shape to achieve energy-saving emission requirements.

[0036] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An automatically adjustable burner central pipeline regulating device, comprising a burner central pipeline regulating device, characterized in that: The burner central pipeline regulating device comprises a gas pipe transition section (1), a central tube chamber (2), an outer tube chamber (3), an inner tube chamber (4), a long gas branch pipe (5), a short gas branch pipe (6), a gas nozzle (7), a valve body (8), a servo actuator (9), a coupling (10), an inner tube (11), an outer tube (13), a tail end cover (14), a sealing gasket (15), a positioning bolt (16), a swirl disk support (17), and a swirl disk (18). The gas pipe transition section (1) is arranged in the central tube chamber (2), the central tube chamber (2) is connected to the inner tube chamber (4) and the outer tube chamber (3), the long gas branch pipe (5) is connected to the inner tube chamber (4), the short gas branch pipe (6) is connected to the outer tube chamber (3), and the ends of the long gas branch pipe (5) and the ends of the short gas branch pipe (6) are respectively provided with gas nozzles (7); The valve body (8) comprises a valve stem (81), a valve plate (82), an extension branch pipe (83), a copper sleeve (84), a valve body end cover (85), an explosion-proof cover (86), a first sealing ring (87), a second sealing ring (88), a valve body bolt (89), and the valve body (8) is located at the end of the inner tube (11) and is synchronously located on the upper side of the gas pipe transition section (1). The valve body (8) mainly comprises a valve stem (81), a valve plate (82), an inner tube (11), an extension branch pipe ( 83), the valve plate (82) of the valve body (8) is connected to the valve stem (81) by bolts (89), copper sleeves (84) are installed at both ends of the valve stem (81), the left end of the valve stem (81) is provided with an explosion-proof cover (86) and a first sealing ring (87), and the right end of the valve stem (81) is provided with a sealing groove, the inside of the sealing groove is provided with a second sealing ring (88), and the right end of the valve stem (81) is provided with a valve body end cover (85); The tail of the outer tube (13) is connected to the tail end cover (14) with a flange by means of positioning bolts (16), and a sealing gasket (15) is arranged in the middle. The swirl disk (18) is connected to the central pipeline via a swirl disk support (17).

2. The automatically adjustable burner central pipeline regulating device according to claim 1, characterized in that: The inner tube chamber (4) and the outer tube chamber (3) are matched in a ratio of 1.5:

1.

3. The automatically adjustable burner central pipeline regulating device according to claim 1, characterized in that: The rotation angle of the valve plate (82) is from 0 degrees to 90 degrees.

4. The automatically adjustable burner central pipeline regulating device according to claim 1, characterized in that: The gap between the valve plate (82) and the inner tube chamber (4) is 0.25 mm.

5. The automatically adjustable burner central pipeline regulating device according to claim 1, characterized in that: The first sealing ring (87) and the second sealing ring (88) are both made of synthetic rubber material.

6. The automatically adjustable burner central pipeline regulating device according to claim 1, characterized in that: The sealing gasket (15) is made of thick asbestos board material and has a thickness of 1.5 mm.

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