Novel ammonia torch head
By using a combination design of variable diameter pipes, companion pipes and inclined companion branch pipes, eternal lamps and windshields in the ammonia torch head, the problems of uneven mixing of ammonia and air and instable combustion are solved, and the ammonia torch gas is realized Easy to ignite, efficient combustion and stable combustion.
Patent Information
- Application Number
- CN202421313291.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-11
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-06-11
AI Technical Summary
When dealing with ammonia, the existing ammonia torch heads have problems such as uneven mixing of ammonia and air, difficulty in ignition, and unstable combustion, resulting in flame licking and breaking the wind ring, short life and insufficient combustion.
A new type of ammonia torch head is designed, using a variable diameter pipe to connect the ammonia torch barrel and head, and a companion fired pipe and multiple inclined companion fired branch pipes are set up, combining a perpetual lamp and a windproof cover to strengthen the ammonia and air through cyclone. Mix and protect the torch head through a holed windshield to provide a stable ignition environment and sufficient air source.
It improves the ignition success rate and combustion stability of ammonia torch gas, extends the service life of the torch head, and ensures stable combustion and efficient combustion of the flame.
Smart Images
Figure CN222210345U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a flare head, in particular to a flare head for burning ammonia gas, which can realize stable ignition and efficient combustion of ammonia flare gas. Background Art
[0002] In the chemical industry, when an emergency occurs, the flare gas discharged from synthetic ammonia and other devices to the elevated flare is mainly composed of ammonia. Ammonia is a colorless, pungent, combustible gas, but the laminar flame speed of ammonia is slow and the ignition temperature is higher than that of conventional hydrocarbon fuel gases such as methane, which makes ignition difficult and combustion unstable. When ammonia flare gas is treated by conventional flare heads, there are problems such as uneven mixing of ammonia and air, difficulty in ignition, and unstable combustion, which can easily cause the flue gas emissions after the flare gas is burned to fail to meet the standards and pollute the surrounding environment.
[0003] CN104482533A discloses an ammonia torch burner, which adopts the following technical solution: an air-breaking ring is fixedly mounted on the upper part of an air intake cylinder, a heat storage chamber is fixedly connected to the upper end of the air-breaking ring, a flame transmission assembly is mounted on one side of the outer wall of the air intake cylinder, and a permanent lamp assembly is mounted on the other side, the upper outlets of the flame transmission assembly and the permanent lamp assembly are both located in the air-breaking ring and are at the same height as the upper outlet of the air intake cylinder, the accompanying burning annular tube assembly is an annular tube fixedly mounted on the upper part of the air intake cylinder and the annular tube is located in the lampshade of the permanent lamp assembly, and the upper end of a high-fire thermocouple extends into the interior of the heat storage chamber; the utility model is mainly used for effectively decomposing ammonia to vent gas and ensure sufficient combustion.
[0004] However, the pressure at the wind breaking ring and the regenerator of the above-mentioned ammonia flare burner is relatively low, and it is easy for the flame to lick and burn the wind breaking ring for a long time, resulting in a long-term high temperature of the wind breaking ring, which reduces the life of the wind breaking ring. In addition, the combustion of the accompanying gas in the regenerator does not enhance the uniform mixing of ammonia and air, which may lead to incomplete combustion of ammonia in the central area and the inability to ensure the combustion stability of the flare gas. Therefore, it is very necessary to design a new type of ammonia flare head that is easy to ignite, stable and efficient in combustion. Utility Model Content
[0005] Aiming at the defects of common ammonia torch heads, such as uneven mixing of ammonia and air, difficulty in ignition, and unstable and efficient combustion, the utility model provides a new ammonia torch head which is easy to ignite, stably and efficiently burns.
[0006] The purpose of this utility model is achieved through the following technical solutions:
[0007] A novel ammonia torch head, comprising an ammonia torch barrel 1 and an ammonia torch head body 4, characterized in that: the ammonia torch barrel 1 is connected to the ammonia torch head body 4 through a reducing pipe; a combustion pipeline is arranged on one side of the ammonia torch head body 4, the combustion pipeline comprises a combustion main pipe 3, a combustion ring pipe 5 and a combustion branch pipe 6, the combustion main pipe 3 is filled with combustion fuel gas and is connected to the ammonia torch head body 4 through a connecting plate; the combustion ring pipe 5 is connected to the gas outlet end of the combustion main pipe 3 The accompanying burning branch pipe 6 is evenly distributed on the accompanying burning ring pipe 5 around the ammonia flare head body 4, and the accompanying burning branch pipe 6 is fixed to the ammonia flare head body 4 through a connecting plate; when arranging the accompanying burning branch pipe 6, it is necessary to leave a position for the ever-burning lamp 9, and the other side of the ammonia flare head body 4 is installed with the ever-burning lamp 9 and is connected to the ammonia flare head body 4 through a connecting plate; a flame stabilizing block 8 is arranged on the top of the ammonia flare head body 4, and a wind shield 7 is arranged on the outside, and the wind shield 7 is fixed to the ammonia flare head body 4 through a connecting plate.
[0008] A fluid seal 2 is installed at the bottom of the ammonia flare head body 4 to prevent flashback.
[0009] The number of the ever-burning lamps 9 is multiple.
[0010] The number of the co-firing branch pipes 6 is multiple.
[0011] The head of the accompanying combustion branch pipe 6 needs to be inclined at 0° to 60° in the radial direction of the ammonia flare head body 4, and at the same time, it needs to be inclined at 0° to 60° in the circumferential tangent direction of the ammonia flare head body 4, and the inclination angles of all the accompanying combustion branch pipes are consistent. Compared with the ordinary accompanying combustion gas nozzle setting, when the accompanying combustion gas is ejected from the accompanying combustion branch pipe 6, a large amount of air is introduced and a swirl is generated, which strengthens the mixing of the flare gas and the air, and provides a high temperature area for the combustion of the flare gas, thereby enhancing the ignition success rate of the flare gas, and improving the burnout rate and combustion stability of the flare gas.
[0012] There are multiple flame stabilizing blocks 8 on the top of the ammonia flare head body 4 to stabilize the flame.
[0013] The wind shield 7 is mounted on the ammonia flare head body 4, and the accompanying burning ring pipe 5, the accompanying burning branch pipe 6 and the pilot light 9 are all located in the wind shield 7. The wind shield 7 protects the ammonia flare head body 4 from being affected by crosswinds, avoids the flame licking the ammonia flare head body 4 due to the existence of the negative pressure area, and can provide a relatively stable ignition environment for the flare head.
[0014] The wind shield 7 has holes. The opening rate is selected according to the flare gas processing capacity; the wind shield 7 with holes can allow the surrounding low-temperature air to pass through the holes through the flare gas's own induced emission capability, thereby reducing the average temperature of the ammonia flare head body 4 and the wind shield 7, extending the service life of the ammonia flare head body 4 and the wind shield 7, and preventing the wind shield 7 from being burned by the flame. At the same time, the high hole area provides a sufficient air source for the flare gas combustion, thereby improving the burnout rate of the flare gas.
[0015] The beneficial effects of the utility model are:
[0016] The utility model provides a high-temperature area for the ammonia flare gas burner after the accompanying combustion gas is ignited by a pilot lamp. A large amount of air is injected and a swirl is generated when the accompanying combustion gas is ejected, thereby providing sufficient air for the ammonia flare gas and strengthening the mixing of the ammonia flare gas and the air. The wind shield protects the ammonia flare head from being damaged by the high-temperature flame and provides the ammonia flare head with a relatively stable ignition environment and a sufficient air source, thereby improving the ignition success rate, combustion stability and burnout rate of the ammonia flare gas. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a structural schematic diagram of a new type of ammonia flare head;
[0018] Figure 2 It is a schematic diagram of the structure of the windshield;
[0019] Figure 3 This is a schematic diagram of the structure of the co-firing branch pipe.
[0020] In the figure: 1 - ammonia flare barrel, 2 - fluid seal, 3 - co-firing main pipe, 4 - ammonia flare head body, 5 - co-firing ring pipe, 6 - co-firing branch pipe, 7 - wind shield, 8 - flame stabilizing block, 9 - ever-burning lamp. DETAILED DESCRIPTION
[0021] The technical solution of the utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0022] like Figure 1-Figure 3 shown.
[0023] A novel ammonia torch head comprises an ammonia torch barrel 1 and an ammonia torch head body 4, wherein the ammonia torch barrel 1 is connected to the ammonia torch head body 4 through a reducing pipe. The novel ammonia torch head is provided with a combustion pipeline, comprising a combustion main pipe 3, a combustion ring pipe 5 and a combustion branch pipe 6, and the combustion pipeline is provided with combustion fuel gas. The combustion main pipe 3 is fixed to the ammonia torch head body 4 through a connecting plate, and a combustion ring pipe 5 is connected to the top of the combustion main pipe 3. A plurality of combustion branch pipes 6 are evenly distributed around the ammonia torch head body 4 on the combustion ring pipe 5, and the combustion branch pipes 6 are fixed to the ammonia torch head body 4 through a connecting plate. When arranging the combustion branch pipes 6, it is necessary to leave a plurality of positions for ever-burning lamps 9, and each ever-burning lamp 9 is fixed to the ammonia torch head body 4 through a connecting plate. A fluid seal 2 is installed at the bottom of the ammonia torch head body 4. A plurality of flame stabilizing blocks 8 (metal blocks, the same as the prior art) are arranged on the top of the ammonia torch head body 4. A cylindrical wind shield (bottomless cylindrical structure) is provided, and the wind shield 7 is fixed to the ammonia torch head body 4 through a connecting plate.
[0024] In order to produce the effect of swirl combustion during specific implementation, the head of the accompanying combustion branch pipe 6 needs to be tilted X° (0-60 degrees) in the radial direction of the ammonia flare head 4, and Y° (0-60 degrees) in the circumferential tangent direction. When the accompanying combustion gas is ejected from the accompanying combustion branch pipe 6, a large amount of air is introduced and a swirl is generated, which strengthens the mixing of the flare gas and air, and provides a high-temperature area for the combustion of the flare gas, thereby enhancing the combustion stability of the flare gas and improving the burnout rate of the flare gas.
[0025] At the same time, in order to protect the flare head from being affected by crosswinds and avoid the flame licking the ammonia flare head body 4 due to the existence of the negative pressure zone, a relatively stable ignition environment can be provided for the flare head. It is best to set a wind shield 7 on the flare head body 4, cover the accompanying burning ring pipe 5, the accompanying burning branch pipe 6 and the ever-burning lamp 9 in the wind shield 7, and open air intake holes on the wind shield 7. The opening rate is selected according to the flare gas processing volume. The wind shield 7 with holes can allow the surrounding lower temperature air to pass through the holes through the flare gas's own induced emission ability, reduce the average temperature of the ammonia flare head body 4 and the wind shield 7, extend the life of the ammonia flare head body 4 and the wind shield 7, and avoid the wind shield 7 being burned by the flame. At the same time, the high hole area provides a sufficient air source for the flare gas combustion and improves the burnout rate of the flare gas.
[0026] The parts not involved in the present invention are the same as the prior art or can be implemented by using the prior art.
Claims
1. A novel ammonia flare head, comprising an ammonia flare barrel (1) and an ammonia flare head body (4), characterized in that: The ammonia flare barrel (1) is connected to the ammonia flare head body (4) through a reducing pipe; a combustion pipe is provided on one side of the ammonia flare head body (4), and the combustion pipe includes a combustion main pipe (3), a combustion ring pipe (5) and a combustion branch pipe (6); the combustion main pipe (3) is filled with combustion fuel gas and is connected to the ammonia flare head body (4) through a connecting plate; the combustion ring pipe (5) is connected to the gas outlet end of the combustion main pipe (3), and the combustion branch pipe (6) is wound around the ammonia flare head body (4). The flare head body (4) is evenly distributed on the accompanying burning ring pipe (5), and the accompanying burning branch pipe (6) is fixed to the ammonia torch head body (4) through a connecting plate; when the accompanying burning branch pipe (6) is arranged, the position of the eternal light (9) needs to be vacated, and the other side of the ammonia torch head body (4) is equipped with a eternal light (9) and connected to the ammonia torch head body (4) through a connecting plate; a flame stabilizing block (8) is provided on the top of the ammonia torch head body (4), and a wind shield (7) is provided on the outside, and the wind shield (7) is fixed to the ammonia torch head body (4) through a connecting plate.
2. The novel ammonia flare head according to claim 1 is characterized in that: A fluid seal (2) is installed at the bottom of the ammonia flare head body (4) to prevent backfire.
3. The novel ammonia flare tip according to claim 1 is characterized in that: The number of the ever-burning lamps (9) is multiple.
4. The novel ammonia flare tip according to claim 1 is characterized in that: The number of the accompanying firing branch pipes (6) is multiple.
5. The novel ammonia flare tip according to claim 1 is characterized in that: The head of the accompanying burning branch pipe (6) needs to be inclined at 0° to 60° in the radial direction of the ammonia flare head body (4), and at the same time inclined at 0° to 60° in the circumferential tangent direction of the ammonia flare head body (4).
6. The novel ammonia flare tip according to claim 1 is characterized in that: There are multiple flame stabilizing blocks (8) on the top of the ammonia flare head body (4) to stabilize the flame.
7. The novel ammonia flare tip according to claim 1 is characterized in that: The wind shield (7) is mounted on the ammonia flare head body (4), and the accompanying burning ring pipe (5), accompanying burning branch pipe (6) and the long-burning lamp (9) are all located in the wind shield (7).
8. The novel ammonia flare tip according to claim 1 or 5, characterized in that: The wind shield (7) has holes.