CN217441664U - Flue regulating valve for low-nitrogen energy-saving combustion of hydrogen-fired boiler - Google Patents
Flue regulating valve for low-nitrogen energy-saving combustion of hydrogen-fired boiler Download PDFInfo
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- CN217441664U CN217441664U CN202220610253.0U CN202220610253U CN217441664U CN 217441664 U CN217441664 U CN 217441664U CN 202220610253 U CN202220610253 U CN 202220610253U CN 217441664 U CN217441664 U CN 217441664U
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Abstract
The utility model discloses a low nitrogen energy-saving flue governing valve of burning hydrogen boiler usefulness, including intake pipe, branch accuse pipe, hybrid tube, the intake pipe has several, and it corresponds respectively and connects branch accuse pipe, each branch accuse pipe then connects the hybrid tube, and is provided with the control valve on each branch accuse pipe, the hybrid tube sets up and is the trapezium structure, holds at the giving vent to anger of hybrid tube and connects the conveyer pipe, set up the pressure boost choke in the conveyer pipe. The utility model controls the supply of the tail gas by controlling the opening of the control valve, has good use reliability, is convenient and quick to adjust, ensures high adjustment precision and freely controls the air input; the operation is easy, the time of field operators in the work of gas quantity regulation and the like is effectively saved, the cost is reduced, and the heating efficiency of the steam boiler is improved; the air is supplied through the plurality of sub-control pipes respectively, so that the phenomenon that the air supply cannot be normal due to deformation and damage of the air inlet end of the valve body is avoided, and the normal work of the control valve is guaranteed.
Description
Technical Field
The utility model belongs to the technical field of chemical industry tail gas treatment, especially, relate to a flue governing valve that low nitrogen energy-conserving burning of hydrogen-fired boiler was used.
Background
At present, chemical plants use waste gas incinerator heating devices in succession in China, and the waste gas incinerator heating devices are generally used for heating steam boilers to generate high-temperature steam. The waste gas incinerator is used for incinerating high-concentration organic waste gas at high temperature, ensures the combustion of the waste gas and maintains the combustion temperature in the incinerator by adjusting the supply of combustion air and the organic waste gas, and ensures that organic matters in the waste gas can be completely combusted and decomposed in the incinerator and the heating efficiency is improved. The existing regulating valves for controlling the air inflow of organic waste gas have the problems of limited regulating range, inconvenience in regulation, difficulty in realizing fine regulation of air quantity and the like, and are not favorable for realizing fine regulation of fire-driving gas control management.
Therefore, the key to solve the problem is to develop a novel regulating valve which is convenient to regulate.
SUMMERY OF THE UTILITY MODEL
The utility model provides a flue regulating valve for low-nitrogen energy-saving combustion of a hydrogen-fired boiler.
The utility model discloses a following technical scheme realizes: including intake pipe, branch accuse pipe, hybrid tube, the intake pipe has several, and it corresponds respectively and connects branch accuse pipe, each branch accuse pipe then connects the hybrid tube, and is provided with the control valve on each branch accuse pipe, the hybrid tube sets up and is the trapezium structure, connects the conveyer pipe at the end of giving vent to anger of hybrid tube, set up the pressure boost choke in the conveyer pipe, the pressure boost choke includes straight tube section, convergent section, divergent section, and the three connects gradually and sets up for integrated into one piece structure, the convergent section is connected the big little X-shaped structure in middle of the big both ends with the divergent section combination the straight tube section sets up the control valve, the divergent section sets up the vortex frame.
Furthermore, each connecting port of the air inlet end of the mixing pipe is arranged in a horn shape.
Furthermore, the air outlet end of the mixing pipe is provided with a turbulence frame.
The beneficial effects of the utility model are that: the utility model controls the supply of tail gas by controlling the opening of the control valve, has good use reliability, and can supply gas respectively through a plurality of sub-control pipes arranged at the gas inlet end of the body, thereby controlling the size of the cross section area of gas, realizing the rapid adjustment of the air input, being convenient and rapid to adjust, ensuring high adjustment precision and freely controlling the air input; the operation is easy, the time of field operators in the work of gas quantity regulation and the like is effectively saved, the cost is reduced, and the heating efficiency of the steam boiler is improved; the air is supplied through the plurality of sub-control pipes respectively, so that the phenomenon that the air supply cannot be normal due to deformation and damage of the air inlet end of the valve body is avoided, and the normal work of the control valve is guaranteed.
Drawings
Fig. 1 is a schematic structural view of the present invention;
reference numbers in the figures: 1-air inlet pipe, 2-branch control pipe, 3-control valve, 4-mixing pipe, 5-conveying pipe, 6-supercharging throat pipe, 7-straight pipe section, 8-convergence section, 9-diffusion section and 10-turbulence frame.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the following detailed description is provided with reference to the accompanying drawings.
The flue regulating valve for low-nitrogen energy-saving combustion of the hydrogen-fired boiler shown in figure 1 comprises an air inlet pipe 1, a branch control pipe 2 and a mixing pipe 4, wherein the number of the air inlet pipe 1 is multiple, which are respectively and correspondingly connected with branch control pipes 2, each branch control pipe 2 is connected with a mixing pipe 4, a control valve 3 is arranged on each branch control pipe 2, the mixing pipe 4 is arranged in a trapezoidal structure, the air outlet end of the mixing pipe 4 is connected with a conveying pipe 5, a pressurizing throat pipe 6 is arranged in the conveying pipe 5, the supercharging throat pipe 6 comprises a straight pipe section 7, a convergent section 8 and a divergent section 9 which are sequentially connected into an integral structure, the convergent section 8 and the divergent section 9 are connected and combined into an X-shaped structure with two large ends and a small middle part, and further compressing the mixed gas, improving the discharge speed of the mixed gas, and improving the jet distance of the mixed gas, wherein the straight pipe section 7 is provided with the control valve 3, and the diffusion section 9 is provided with the spoiler frame 10.
The diameter of the straight pipe section 7 is smaller than that of the mixing pipe 4.
And each connecting port at the air inlet end of the mixing pipe 4 is arranged in a trumpet shape.
The gas outlet end of the sub-control pipes 2 is arranged in a horn shape and is connected with the gas inlet end of the mixing pipe 4 to form an X-shaped structure with two large ends and a small middle part, so that gas discharged from each sub-control pipe 2 can move rapidly to mix, and the effect of uniform gas mixing is improved.
Mixing tube 4 give vent to anger the end and be provided with vortex frame 10, make gas mixing more even, eliminate the swirl of diffuser 9 department, slow down the 9 wearing and tearing degrees of diffuser, prevent simultaneously that gas from forming the whirl, influence gaseous throughput and speed.
The inner walls of the air inlet pipe 1, the branch control pipe 2, the mixing pipe 4 and the pressurization throat pipe 6 are provided with anti-corrosion coatings.
The spoiler frame 10 is a cross, a meter-shaped or an impeller.
Furthermore, in order to be matched with the better use of the device and improve the regulation efficiency and the regulation precision, a flow meter and a pressure gauge are arranged on the straight pipe section 7.
Further, in order to cooperate with better use of the device, the regulation efficiency and the regulation precision are improved, and the control device is also provided and comprises a control valve 3, a flow meter and a pressure meter and is a single chip microcomputer.
The utility model discloses a working method: when the device is used, each air inlet pipe 1 is respectively connected to the branch control pipes 2 according to the gas (such as air, organic waste gas and the like) of the air inlet pipe 1, so that one gas is respectively input into each branch control pipe 2, the gas enters the air outlet end of each branch control pipe 2, is firstly subjected to preliminary micro-compression and is then injected into the mixing pipe 4, the gas injected by each branch control pipe 2 is quickly collided and mixed in the mixing pipe 4, the preliminary mixing is realized to be mixed gas, the mixed gas enters the pressurization throat pipe 6 again, the mixed gas is further compressed in the convergence section 8 and then is injected from the diffusion section 9, and therefore the mixed gas is discharged to a steam boiler to be combusted. In the process, the air inflow can be adjusted through the control valves 3 on the branch control pipes 2, and the control valves 3 on the straight pipe sections 7 are adjusted to control the supply amount of the mixed gas; when one of the sub-control pipes 2 has a problem, the other sub-control pipes 2 can be quickly switched to supply air, so that stable and reliable air supply is ensured.
Claims (7)
1. The utility model provides a flue governing valve that hydrogen-fired boiler low nitrogen energy-saving combustion used which characterized in that: comprises an air inlet pipe (1), a branch control pipe (2) and a mixing pipe (4), wherein a plurality of air inlet pipes (1), which are respectively and correspondingly connected with branch control pipes (2), each branch control pipe (2) is connected with a mixing pipe (4), and each sub-control pipe (2) is provided with a control valve (3), the mixing pipe (4) is arranged in a trapezoidal structure, the air outlet end of the mixing pipe (4) is connected with a conveying pipe (5), a pressurizing throat pipe (6) is arranged in the conveying pipe (5), the supercharging choke (6) comprises a straight pipe section (7), a converging section (8) and a diverging section (9) which are sequentially connected into an integral structure, the convergent section (8) and the divergent section (9) are connected and combined into an X-shaped structure with two large ends and a small middle, the straight pipe section (7) is provided with a control valve (3), and the diffusion section (9) is provided with a spoiler frame (10).
2. The flue regulating valve for low-nitrogen energy-saving combustion of the hydrogen-fired boiler according to claim 1, characterized in that: and each connecting port at the air inlet end of the mixing pipe (4) is arranged in a horn shape.
3. The flue regulating valve for low-nitrogen energy-saving combustion of the hydrogen-fired boiler according to claim 1, characterized in that: the air outlet end of the sub-control pipe (2) is arranged in a horn shape and is connected with the air inlet end of the mixing pipe (4) to form an X-shaped structure with two large ends and a small middle.
4. The flue regulating valve for low-nitrogen energy-saving combustion of the hydrogen-fired boiler according to claim 1, characterized in that: the air outlet end of the mixing pipe (4) is provided with a turbulence frame (10).
5. The flue regulating valve for low-nitrogen energy-saving combustion of the hydrogen-fired boiler according to claim 1, characterized in that: and the inner walls of the air inlet pipe (1), the branch control pipe (2), the mixing pipe (4) and the pressurization throat pipe (6) are provided with anti-corrosion coatings.
6. The flue regulating valve for low-nitrogen energy-saving combustion of the hydrogen-fired boiler according to claim 1 or 4, characterized in that: the turbulence frame (10) is in a cross shape, a meter shape or an impeller.
7. The flue regulating valve for low-nitrogen energy-saving combustion of the hydrogen-fired boiler according to claim 1, characterized in that: the diameter of the straight pipe section (7) is smaller than that of the mixing pipe (4).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123183257X | 2021-12-17 | ||
| CN202123183257 | 2021-12-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217441664U true CN217441664U (en) | 2022-09-16 |
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ID=83215233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220610253.0U Active CN217441664U (en) | 2021-12-17 | 2022-03-21 | Flue regulating valve for low-nitrogen energy-saving combustion of hydrogen-fired boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217441664U (en) |
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2022
- 2022-03-21 CN CN202220610253.0U patent/CN217441664U/en active Active
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